fix(github-copilot): route per-model on /v1/responses based on model info by codgician · Pull Request #29747 · BerriAI/litellm

codgician · 2026-06-05T06:07:56Z

Reopening PR #28217 (previously #19650), which were auto-closed when their target staging branch was recreated. This PR targets litellm_internal_staging. Fixes #20103.

Relevant issues

Fixes #20103

Pre-Submission checklist

Please complete all items before asking a LiteLLM maintainer to review your PR

I have Added testing in the tests/litellm/ directory, Adding at least 1 test is a hard requirement - see details
My PR passes all unit tests on make test-unit
My PR's scope is as isolated as possible, it only solves 1 specific problem

Note: failing tests and lints are not caused by this change.

Type

🐛 Bug Fix

Video Demo

Left side is local dev server on this branch, and the right side is a production server I am self hosting.

Recording.2026-06-08.164527.mp4

Changes

Problem

GitHub Copilot's /v1/responses endpoint is per-model: only some models (e.g. gpt-5.5, gpt-5.4, gpt-5.4-mini) support it natively upstream. The GithubCopilotResponsesAPIConfig provider config was registered for github_copilot provider-wide, so every model was forced to native /v1/responses dispatch. Chat-only models like gemini-3.1-pro-preview therefore failed upstream with model X does not support Responses API.

Fix

litellm/llms/github_copilot/responses/transformation.py: add github_copilot_supports_responses_api(model) helper. The helper reads mode and supported_endpoints from the merged model info (which incorporates user-supplied per-deployment model_info via the router's litellm.register_model call) using a 4-tier resolution:
1. mode == "responses" → native dispatch (positive opt-in)
2. mode == "chat" → chat-completions translation bridge (explicit opt-out, lets users force the bridge for dual-endpoint models)
3. "/v1/responses" in supported_endpoints → native dispatch
4. Otherwise → bridge (conservative default; the bridge always works because every Copilot model supports /chat/completions)
Catalog lookup raising (model not registered) → bridge (conservative).
litellm/utils.py: ProviderConfigManager.get_provider_responses_api_config now calls the helper for the github_copilot branch and returns None for non-supporting models, letting the existing dispatcher in litellm/responses/main.py fall back to the chat-completions translation bridge.

The gate is fully data-driven: it reads mode / supported_endpoints from the model catalog (and any user-supplied per-deployment model_info), so no model names are hardcoded. Keeping the catalog entries themselves up to date is handled separately by the existing model-map auto-update workflow, so this PR does not modify model_prices_and_context_window.json.

Behavior

Model	Before	After
`github_copilot/gemini-3.1-pro-preview` on `/v1/responses`	HTTP 400 from upstream	HTTP 200 via chat-completions bridge
`github_copilot/gpt-5.5` on `/v1/responses`	HTTP 200 (native)	HTTP 200 (native, unchanged)
`github_copilot/gpt-5.4` on `/v1/responses`	HTTP 200 (native)	HTTP 200 (native, unchanged)

Tests

Added unit tests covering the gate logic in tests/test_litellm/llms/github_copilot/responses/test_github_copilot_responses_transformation.py: every resolution tier (positive mode, negative mode, endpoint-list fallback, conservative defaults), model=None follow-up operations, and realistic catalog-shape fixtures for both chat-only and Responses-only Copilot models.
Updated 1 pre-existing test to use a Responses-capable model from the bundled catalog, exercising the full catalog → helper → config stack.
All 29 tests in the file pass.

codecov · 2026-06-05T06:11:24Z

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

greptile-apps · 2026-06-05T06:19:27Z

Greptile Summary

This PR fixes per-model routing for GitHub Copilot's /v1/responses endpoint so that chat-only models (e.g. gemini-3.1-pro-preview) fall back to the chat-completions translation bridge instead of being incorrectly dispatched to the native Responses API.

Adds github_copilot_supports_responses_api(model) helper in transformation.py with a 4-tier resolution: mode=\"responses\" → native, mode=\"chat\" → bridge, \"/v1/responses\" in supported_endpoints (read from the raw litellm.model_cost dict via the resolved key field) → native, else → bridge.
Updates ProviderConfigManager.get_provider_responses_api_config in utils.py to call this helper and return None for non-supporting models, which the existing dispatcher in responses/main.py interprets as a signal to use the chat-completions bridge.
Adds a comprehensive test class covering all four resolution tiers, model=None passthrough, exception handling, and end-to-end catalog-shape fixtures; updates one existing test to use a Responses-capable catalog model.

Confidence Score: 5/5

Safe to merge. The change is narrowly scoped to GitHub Copilot responses-API dispatch and falls back conservatively to the chat-completions bridge for any model not explicitly identified as supporting native responses.

The routing logic is data-driven and reads directly from the existing model cost catalog, introducing no hardcoded model names. The fallback is the safe path, so any catalog miss degrades gracefully. GET/DELETE/list operations that pass model=None are correctly short-circuited. Tests cover all four resolution tiers plus edge cases, and no pre-existing tests were weakened.

No files require special attention.

Important Files Changed

Filename	Overview
litellm/llms/github_copilot/responses/transformation.py	Adds github_copilot_supports_responses_api helper implementing 4-tier model-info resolution; correctly reads mode from ModelInfoBase and falls back to raw litellm.model_cost[key] for supported_endpoints.
litellm/utils.py	Extends GITHUB_COPILOT branch in get_provider_responses_api_config to call the new helper and return None for non-supporting models; minimal and consistent with the existing provider-dispatch pattern.
tests/test_litellm/llms/github_copilot/responses/test_github_copilot_responses_transformation.py	Adds TestGithubCopilotResponsesAPIRouting with 9 new tests covering all routing tiers; autouse fixture pins litellm.model_cost to the bundled catalog; register_model calls inside tests clear the LRU cache.

_{Reviews (3): Last reviewed commit: "fix(github-copilot): route per-model on ..." | Re-trigger Greptile}

…info

codgician · 2026-06-05T11:46:05Z

@greptileai request review

Sameerlite

LGTM

* feat(bedrock_mantle): add SigV4/IAM auth to Responses API route (fixes #29665) (#29788) * feat(responses): add default no-op sign_request to BaseResponsesAPIConfig * feat(responses): call sign_request after body is final, send signed bytes when signed * feat(bedrock_mantle): add SigV4 sign_request via composed BaseAWSLLM (bearer path) * test(bedrock_mantle): cover SigV4 access-key, AssumeRole, body bytes, region/auth consistency * feat(bedrock_mantle): defer auth to sign_request; validate_environment no longer requires bearer * docs(bedrock_mantle): document SigV4 + Bearer auth on Responses route * test(responses): cover fake-stream signing order and mantle bearer arg/env precedence * fix(bedrock_mantle): wrap all botocore credential errors with both-paths guidance * fix(bedrock_mantle): catch specific credential errors, not all BotoCoreError, so STS transport failures are not masked * fix(bedrock_mantle): sign the compact Responses route too, not just create * fix(github-copilot): route per-model on /v1/responses based on model info (#29747) * feat(focus): add GCS destination for FOCUS export (#29751) * test: add failing tests for FocusGCSDestination * feat: add FocusGCSDestination reusing GCSBucketBase auth * feat: register FocusGCSDestination in factory; export from __init__ * fix(focus): preserve GCS_PATH_SERVICE_ACCOUNT when service_account_json not in config * style: apply Black formatting to gcs_destination and tests * style: apply Black formatting to factory.py * fix(bedrock): omit empty additionalModelRequestFields and system from Converse API payload (#29565) Amazon Nova Pro (and other strict Bedrock models) return 400 Malformed input request when additionalModelRequestFields: {} or system: [] are present in the payload. Both fields are optional in CommonRequestObject (total=False) and must be omitted rather than sent as empty structures. Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(proxy): recognize *.cognitiveservices.azure.com as OpenAI-compatible in pass-through cost tracking (#29730) * fix(proxy): recognize *.cognitiveservices.azure.com as OpenAI-compatible Azure OpenAI resources created via the newer "Azure AI Foundry" / Cognitive Services pathway live on `*.cognitiveservices.azure.com` subdomains, not the older `openai.azure.com`. Both are valid Azure OpenAI surfaces in production today. The OpenAI pass-through cost-tracking handler hard-codes only the older hostname in five places (four `is_openai_*_route` methods on OpenAIPassthroughLoggingHandler, plus is_openai_route on PassThroughEndpointLogging). As a result, calls from newer Azure deployments are silently classified as "not an OpenAI route", the dispatch into the cost-tracking handler is skipped, and tokens/cost never get extracted into LiteLLM_SpendLogs — the row gets written with prompt_tokens=0, completion_tokens=0, spend=0, model='unknown'. Reproduced 2026-06-04 against a real Azure OpenAI deployment on `*.cognitiveservices.azure.com` proxied through LiteLLM v1.88.0. Fix: factor the hostname check into a single helper `_is_openai_compatible_host` listing all three recognized surfaces (api.openai.com, openai.azure.com, cognitiveservices.azure.com), and have all five call sites delegate to it. Purely additive — never weakens recognition for the originally-supported hostnames. Adds a test `test_is_openai_route_recognizes_cognitiveservices_azure_com` that exercises all four `is_openai_*_route` static methods against `*.cognitiveservices.azure.com` URLs (positive cases per route + a small cross-route negative to confirm route-specific path matching still works on the new hostname). Out of scope for this PR (separate followup): - `openai_passthrough_handler` calls chat/completions `transform_response` on Responses API payloads (`output:` not `choices:`), which throws inside the dispatch and drops the SpendLogs row entirely. Recognized + tracked separately. * ci: trigger fresh run Empty commit to re-run checks. The previous auth-and-jwt failure was a transient HuggingFace Hub 429 rate-limit hitting tokenizer downloads in tests/proxy_unit_tests/test_custom_tokenizer_bug.py — unrelated to this PR's scope (hostname recognition in pass-through cost tracking). No code change. --------- Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> * fix(responses): preserve forced-function tool_choice name in Responses to Chat transform (#29812) The Responses API forces a specific function with a top-level name ({"type": "function", "name": "X"}), but _transform_tool_choice only handled the nested Chat Completions shape and fell through to returning "required" for the flat form, silently dropping the function name and degrading a forced function call to force-any-tool. Map the flat Responses shape to the nested Chat shape, keeping the "required" fallback when no name is present. * Preserve x-anthropic-billing-header system blocks for first-party Anthropic (#29584) * Preserve x-anthropic-billing-header system blocks for first-party Anthropic PR #20951 strips system blocks beginning with "x-anthropic-billing-header:" for every Anthropic target. That block is how the first-party Anthropic API recognizes Claude Code subscription (OAuth) traffic, so dropping it makes requests that carry only that block, such as the auto-mode tool-safety classifier, fail with a misleading 429 rate_limit_error; normal turns still work because they also carry the "You are Claude Code" identity block. Gate the strip behind should_strip_billing_metadata(), defaulting to False on the first-party AnthropicConfig and AnthropicMessagesConfig so the block is kept, and overridden to True on the providers that reach these transforms and reject the block (Bedrock platform, Vertex, Azure for the chat path; Minimax, Azure, DeepSeek for the messages path). Behavior for those providers is unchanged. * Strip billing header on Bedrock invoke and Vertex messages pass-through Two more subclasses reach the gated strip but inherited keep-by-default. AmazonAnthropicClaudeConfig (Bedrock invoke) calls AnthropicConfig.transform_request, which calls translate_system_message, and VertexAIPartnerModelsAnthropicMessagesConfig (Vertex messages pass-through) calls super().transform_anthropic_messages_request. Override should_strip_billing_metadata() to True on both. Add a parametrized test asserting the flag for every first-party base (False) and provider subclass (True), covering all overrides, plus a translate_system_message regression test for the Bedrock invoke path. * fix(cache): log hashed cache keys (#29890) * fix(ui): save routing groups as list (#29889) * Revert "fix(ui): save routing groups as list (#29889)" (#29928) This reverts commit 9b1f78f. * feat(parasail): add Parasail as a JSON-configured OpenAI-compatible provider (#29842) * feat(parasail): add Parasail as a JSON-configured OpenAI-compatible provider Registers parasail in the openai_like JSON provider loader with both /v1/chat/completions and /v1/responses support. Parasail's Responses API rejects store:true and any request that omits store, so the loader gains a force_store_false special_handling flag; the parasail entry sets it and the generated Responses config overrides store=false on every call. This keeps callers from hitting "State storage not supported" and matches what Parasail's docs require. Adds the PARASAIL enum value, listing under openai_compatible_providers, provider documentation at docs/my-website/docs/providers/parasail.md, and a focused unit test file under tests/test_litellm/llms/parasail/ that covers JSON registration, chat URL construction, Responses URL construction with PARASAIL_API_BASE override, and the force_store_false regression in both the caller-sent-store=true and caller-omitted cases. * fix(parasail): register in provider_endpoints_support, drop in-repo docs Greptile review feedback. The provider doc belongs in the litellm-docs repo, not this one's docs/my-website tree; removing it here. Adds the parasail entry to provider_endpoints_support.json so the check_provider_folders_documented.py CI check passes (chat_completions and responses true; others false). * fix: normalize Anthropic passthrough server tool usage (#29827) * test(anthropic): cover server_tool_use dict cost tracking * fix: normalize Anthropic server tool usage (cherry picked from commit 982f726) * fix: keep server tool usage subscriptable (cherry picked from commit 70280b9) --------- Co-authored-by: Genmin <joey@joeyroth.com> * fix(proxy): fix typo generic_role_mappoings -> generic_role_mappings in ui_sso.py (#29753) Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> * feat(proxy): add disable_budget_reservation general setting (#27639) (#29493) * feat(proxy): add disable_budget_reservation general setting (#27639) * feat(proxy): register disable_budget_reservation in ConfigGeneralSettings (#27639) * docs(proxy): document disable_budget_reservation concurrency tradeoff (#27639) * ci: re-trigger flaky docker build (prisma generate ECONNRESET) * fix(proxy): warn and document budget enforcement tradeoff when disable_budget_reservation is set (#27639) * feat(gemini_tts): adding support to Gemini TTS languageCode parameters (#29623) * Adding support to Gemini TTS Language Code parameters * Mapping Gemini TTS languageCode param in Docstring * Use snake_case for language_code input keyMapping Gemini TTS languageCode param in Docstring * Restoring files modified under enterprise/litellm_enterprise due to lint/formatting checks --------- Co-authored-by: João Garrido <joaogarrido@google.com> * feat(guardrails): capture user and model metadata in CrowdStrike AIDR (#29517) * fix(proxy): require OpenAI path segment for shared Azure Cognitive Services domains Address Greptile review: the `*.cognitiveservices.azure.com` / `*.openai.azure.com` domains are shared by every Azure Cognitive Service (Speech, Vision, Language, ...), so a hostname-only substring match misclassified non-OpenAI Azure traffic as OpenAI routes. - Replace the substring host test with suffix matching (rejects look-alike domains like cognitiveservices.azure.com.attacker.example). - Add `_is_openai_compatible_url` that requires an OpenAI-style path marker (`/openai/` or `/v1/`) on the shared Azure domains, and use it in PassThroughEndpointLogging.is_openai_route (previously hostname-only). - Add negative tests for Azure Speech/Vision paths and look-alike domains. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix: support Responses input in Redis semantic cache (#29581) * fix: support responses input in redis semantic cache * test: cover redis semantic prompt extraction * test: handle blank redis semantic text fallbacks * chore: remove async cache dead statement * test: cover redis semantic cache miss paths * fix: filter sensitive cache lookup kwargs * chore: rerun ci after huggingface rate limit * chore(ui): regenerate dashboard API types (npm run gen:api) Sync src/lib/http/schema.d.ts with the proxy OpenAPI spec: adds the disable_budget_reservation general-settings field and picks up the RateLimitError docstring reindent. Fixes the gen:api CI drift check. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * test(bedrock): assert empty additionalModelRequestFields is omitted The Converse transformer now drops an empty additionalModelRequestFields block instead of sending it as `{}`. Update test_bedrock_top_k_param so models without top_k support (llama3) assert the key is absent rather than equal to an empty dict. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Kent <72616338+kingdoooo@users.noreply.github.com> Co-authored-by: codgician <15964984+codgician@users.noreply.github.com> Co-authored-by: Praveen Ghuge <95286176+pghuge-cloudwiz@users.noreply.github.com> Co-authored-by: Roi <roytev@gmail.com> Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> Co-authored-by: Liam Scott <liam@uilliam.com> Co-authored-by: abhay23-AI <abhaytrivedi22@gmail.com> Co-authored-by: Ceder Dens <cederdens@gmail.com> Co-authored-by: 冯基魁 <56265583+fengjikui@users.noreply.github.com> Co-authored-by: Kai Huang <kaihuang724@gmail.com> Co-authored-by: rinto <54238243+ririnto@users.noreply.github.com> Co-authored-by: Genmin <joey@joeyroth.com> Co-authored-by: Arnav Bhilwariya <arnavbhilwariya0408@gmail.com> Co-authored-by: Armaan Sandhu <74664101+Ar-maan05@users.noreply.github.com> Co-authored-by: João Garrido <48538534+johngarrido@users.noreply.github.com> Co-authored-by: João Garrido <joaogarrido@google.com> Co-authored-by: Kenan Yildirim <kenan@kenany.me> Co-authored-by: Dávid Balatoni <balcsida@gmail.com>

* feat(bedrock_mantle): add SigV4/IAM auth to Responses API route (fixes BerriAI#29665) (BerriAI#29788) * feat(responses): add default no-op sign_request to BaseResponsesAPIConfig * feat(responses): call sign_request after body is final, send signed bytes when signed * feat(bedrock_mantle): add SigV4 sign_request via composed BaseAWSLLM (bearer path) * test(bedrock_mantle): cover SigV4 access-key, AssumeRole, body bytes, region/auth consistency * feat(bedrock_mantle): defer auth to sign_request; validate_environment no longer requires bearer * docs(bedrock_mantle): document SigV4 + Bearer auth on Responses route * test(responses): cover fake-stream signing order and mantle bearer arg/env precedence * fix(bedrock_mantle): wrap all botocore credential errors with both-paths guidance * fix(bedrock_mantle): catch specific credential errors, not all BotoCoreError, so STS transport failures are not masked * fix(bedrock_mantle): sign the compact Responses route too, not just create * fix(github-copilot): route per-model on /v1/responses based on model info (BerriAI#29747) * feat(focus): add GCS destination for FOCUS export (BerriAI#29751) * test: add failing tests for FocusGCSDestination * feat: add FocusGCSDestination reusing GCSBucketBase auth * feat: register FocusGCSDestination in factory; export from __init__ * fix(focus): preserve GCS_PATH_SERVICE_ACCOUNT when service_account_json not in config * style: apply Black formatting to gcs_destination and tests * style: apply Black formatting to factory.py * fix(bedrock): omit empty additionalModelRequestFields and system from Converse API payload (BerriAI#29565) Amazon Nova Pro (and other strict Bedrock models) return 400 Malformed input request when additionalModelRequestFields: {} or system: [] are present in the payload. Both fields are optional in CommonRequestObject (total=False) and must be omitted rather than sent as empty structures. Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> * fix(proxy): recognize *.cognitiveservices.azure.com as OpenAI-compatible in pass-through cost tracking (BerriAI#29730) * fix(proxy): recognize *.cognitiveservices.azure.com as OpenAI-compatible Azure OpenAI resources created via the newer "Azure AI Foundry" / Cognitive Services pathway live on `*.cognitiveservices.azure.com` subdomains, not the older `openai.azure.com`. Both are valid Azure OpenAI surfaces in production today. The OpenAI pass-through cost-tracking handler hard-codes only the older hostname in five places (four `is_openai_*_route` methods on OpenAIPassthroughLoggingHandler, plus is_openai_route on PassThroughEndpointLogging). As a result, calls from newer Azure deployments are silently classified as "not an OpenAI route", the dispatch into the cost-tracking handler is skipped, and tokens/cost never get extracted into LiteLLM_SpendLogs — the row gets written with prompt_tokens=0, completion_tokens=0, spend=0, model='unknown'. Reproduced 2026-06-04 against a real Azure OpenAI deployment on `*.cognitiveservices.azure.com` proxied through LiteLLM v1.88.0. Fix: factor the hostname check into a single helper `_is_openai_compatible_host` listing all three recognized surfaces (api.openai.com, openai.azure.com, cognitiveservices.azure.com), and have all five call sites delegate to it. Purely additive — never weakens recognition for the originally-supported hostnames. Adds a test `test_is_openai_route_recognizes_cognitiveservices_azure_com` that exercises all four `is_openai_*_route` static methods against `*.cognitiveservices.azure.com` URLs (positive cases per route + a small cross-route negative to confirm route-specific path matching still works on the new hostname). Out of scope for this PR (separate followup): - `openai_passthrough_handler` calls chat/completions `transform_response` on Responses API payloads (`output:` not `choices:`), which throws inside the dispatch and drops the SpendLogs row entirely. Recognized + tracked separately. * ci: trigger fresh run Empty commit to re-run checks. The previous auth-and-jwt failure was a transient HuggingFace Hub 429 rate-limit hitting tokenizer downloads in tests/proxy_unit_tests/test_custom_tokenizer_bug.py — unrelated to this PR's scope (hostname recognition in pass-through cost tracking). No code change. --------- Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> * fix(responses): preserve forced-function tool_choice name in Responses to Chat transform (BerriAI#29812) The Responses API forces a specific function with a top-level name ({"type": "function", "name": "X"}), but _transform_tool_choice only handled the nested Chat Completions shape and fell through to returning "required" for the flat form, silently dropping the function name and degrading a forced function call to force-any-tool. Map the flat Responses shape to the nested Chat shape, keeping the "required" fallback when no name is present. * Preserve x-anthropic-billing-header system blocks for first-party Anthropic (BerriAI#29584) * Preserve x-anthropic-billing-header system blocks for first-party Anthropic PR BerriAI#20951 strips system blocks beginning with "x-anthropic-billing-header:" for every Anthropic target. That block is how the first-party Anthropic API recognizes Claude Code subscription (OAuth) traffic, so dropping it makes requests that carry only that block, such as the auto-mode tool-safety classifier, fail with a misleading 429 rate_limit_error; normal turns still work because they also carry the "You are Claude Code" identity block. Gate the strip behind should_strip_billing_metadata(), defaulting to False on the first-party AnthropicConfig and AnthropicMessagesConfig so the block is kept, and overridden to True on the providers that reach these transforms and reject the block (Bedrock platform, Vertex, Azure for the chat path; Minimax, Azure, DeepSeek for the messages path). Behavior for those providers is unchanged. * Strip billing header on Bedrock invoke and Vertex messages pass-through Two more subclasses reach the gated strip but inherited keep-by-default. AmazonAnthropicClaudeConfig (Bedrock invoke) calls AnthropicConfig.transform_request, which calls translate_system_message, and VertexAIPartnerModelsAnthropicMessagesConfig (Vertex messages pass-through) calls super().transform_anthropic_messages_request. Override should_strip_billing_metadata() to True on both. Add a parametrized test asserting the flag for every first-party base (False) and provider subclass (True), covering all overrides, plus a translate_system_message regression test for the Bedrock invoke path. * fix(cache): log hashed cache keys (BerriAI#29890) * fix(ui): save routing groups as list (BerriAI#29889) * Revert "fix(ui): save routing groups as list (BerriAI#29889)" (BerriAI#29928) This reverts commit 9b1f78f. * feat(parasail): add Parasail as a JSON-configured OpenAI-compatible provider (BerriAI#29842) * feat(parasail): add Parasail as a JSON-configured OpenAI-compatible provider Registers parasail in the openai_like JSON provider loader with both /v1/chat/completions and /v1/responses support. Parasail's Responses API rejects store:true and any request that omits store, so the loader gains a force_store_false special_handling flag; the parasail entry sets it and the generated Responses config overrides store=false on every call. This keeps callers from hitting "State storage not supported" and matches what Parasail's docs require. Adds the PARASAIL enum value, listing under openai_compatible_providers, provider documentation at docs/my-website/docs/providers/parasail.md, and a focused unit test file under tests/test_litellm/llms/parasail/ that covers JSON registration, chat URL construction, Responses URL construction with PARASAIL_API_BASE override, and the force_store_false regression in both the caller-sent-store=true and caller-omitted cases. * fix(parasail): register in provider_endpoints_support, drop in-repo docs Greptile review feedback. The provider doc belongs in the litellm-docs repo, not this one's docs/my-website tree; removing it here. Adds the parasail entry to provider_endpoints_support.json so the check_provider_folders_documented.py CI check passes (chat_completions and responses true; others false). * fix: normalize Anthropic passthrough server tool usage (BerriAI#29827) * test(anthropic): cover server_tool_use dict cost tracking * fix: normalize Anthropic server tool usage (cherry picked from commit 982f726) * fix: keep server tool usage subscriptable (cherry picked from commit 70280b9) --------- Co-authored-by: Genmin <joey@joeyroth.com> * fix(proxy): fix typo generic_role_mappoings -> generic_role_mappings in ui_sso.py (BerriAI#29753) Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> * feat(proxy): add disable_budget_reservation general setting (BerriAI#27639) (BerriAI#29493) * feat(proxy): add disable_budget_reservation general setting (BerriAI#27639) * feat(proxy): register disable_budget_reservation in ConfigGeneralSettings (BerriAI#27639) * docs(proxy): document disable_budget_reservation concurrency tradeoff (BerriAI#27639) * ci: re-trigger flaky docker build (prisma generate ECONNRESET) * fix(proxy): warn and document budget enforcement tradeoff when disable_budget_reservation is set (BerriAI#27639) * feat(gemini_tts): adding support to Gemini TTS languageCode parameters (BerriAI#29623) * Adding support to Gemini TTS Language Code parameters * Mapping Gemini TTS languageCode param in Docstring * Use snake_case for language_code input keyMapping Gemini TTS languageCode param in Docstring * Restoring files modified under enterprise/litellm_enterprise due to lint/formatting checks --------- Co-authored-by: João Garrido <joaogarrido@google.com> * feat(guardrails): capture user and model metadata in CrowdStrike AIDR (BerriAI#29517) * fix(proxy): require OpenAI path segment for shared Azure Cognitive Services domains Address Greptile review: the `*.cognitiveservices.azure.com` / `*.openai.azure.com` domains are shared by every Azure Cognitive Service (Speech, Vision, Language, ...), so a hostname-only substring match misclassified non-OpenAI Azure traffic as OpenAI routes. - Replace the substring host test with suffix matching (rejects look-alike domains like cognitiveservices.azure.com.attacker.example). - Add `_is_openai_compatible_url` that requires an OpenAI-style path marker (`/openai/` or `/v1/`) on the shared Azure domains, and use it in PassThroughEndpointLogging.is_openai_route (previously hostname-only). - Add negative tests for Azure Speech/Vision paths and look-alike domains. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix: support Responses input in Redis semantic cache (BerriAI#29581) * fix: support responses input in redis semantic cache * test: cover redis semantic prompt extraction * test: handle blank redis semantic text fallbacks * chore: remove async cache dead statement * test: cover redis semantic cache miss paths * fix: filter sensitive cache lookup kwargs * chore: rerun ci after huggingface rate limit * chore(ui): regenerate dashboard API types (npm run gen:api) Sync src/lib/http/schema.d.ts with the proxy OpenAPI spec: adds the disable_budget_reservation general-settings field and picks up the RateLimitError docstring reindent. Fixes the gen:api CI drift check. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * test(bedrock): assert empty additionalModelRequestFields is omitted The Converse transformer now drops an empty additionalModelRequestFields block instead of sending it as `{}`. Update test_bedrock_top_k_param so models without top_k support (llama3) assert the key is absent rather than equal to an empty dict. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Kent <72616338+kingdoooo@users.noreply.github.com> Co-authored-by: codgician <15964984+codgician@users.noreply.github.com> Co-authored-by: Praveen Ghuge <95286176+pghuge-cloudwiz@users.noreply.github.com> Co-authored-by: Roi <roytev@gmail.com> Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> Co-authored-by: Liam Scott <liam@uilliam.com> Co-authored-by: abhay23-AI <abhaytrivedi22@gmail.com> Co-authored-by: Ceder Dens <cederdens@gmail.com> Co-authored-by: 冯基魁 <56265583+fengjikui@users.noreply.github.com> Co-authored-by: Kai Huang <kaihuang724@gmail.com> Co-authored-by: rinto <54238243+ririnto@users.noreply.github.com> Co-authored-by: Genmin <joey@joeyroth.com> Co-authored-by: Arnav Bhilwariya <arnavbhilwariya0408@gmail.com> Co-authored-by: Armaan Sandhu <74664101+Ar-maan05@users.noreply.github.com> Co-authored-by: João Garrido <48538534+johngarrido@users.noreply.github.com> Co-authored-by: João Garrido <joaogarrido@google.com> Co-authored-by: Kenan Yildirim <kenan@kenany.me> Co-authored-by: Dávid Balatoni <balcsida@gmail.com>

* feat(bedrock_mantle): add SigV4/IAM auth to Responses API route (fixes BerriAI#29665) (BerriAI#29788) * feat(responses): add default no-op sign_request to BaseResponsesAPIConfig * feat(responses): call sign_request after body is final, send signed bytes when signed * feat(bedrock_mantle): add SigV4 sign_request via composed BaseAWSLLM (bearer path) * test(bedrock_mantle): cover SigV4 access-key, AssumeRole, body bytes, region/auth consistency * feat(bedrock_mantle): defer auth to sign_request; validate_environment no longer requires bearer * docs(bedrock_mantle): document SigV4 + Bearer auth on Responses route * test(responses): cover fake-stream signing order and mantle bearer arg/env precedence * fix(bedrock_mantle): wrap all botocore credential errors with both-paths guidance * fix(bedrock_mantle): catch specific credential errors, not all BotoCoreError, so STS transport failures are not masked * fix(bedrock_mantle): sign the compact Responses route too, not just create * fix(github-copilot): route per-model on /v1/responses based on model info (BerriAI#29747) * feat(focus): add GCS destination for FOCUS export (BerriAI#29751) * test: add failing tests for FocusGCSDestination * feat: add FocusGCSDestination reusing GCSBucketBase auth * feat: register FocusGCSDestination in factory; export from __init__ * fix(focus): preserve GCS_PATH_SERVICE_ACCOUNT when service_account_json not in config * style: apply Black formatting to gcs_destination and tests * style: apply Black formatting to factory.py * fix(bedrock): omit empty additionalModelRequestFields and system from Converse API payload (BerriAI#29565) Amazon Nova Pro (and other strict Bedrock models) return 400 Malformed input request when additionalModelRequestFields: {} or system: [] are present in the payload. Both fields are optional in CommonRequestObject (total=False) and must be omitted rather than sent as empty structures. Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> * fix(proxy): recognize *.cognitiveservices.azure.com as OpenAI-compatible in pass-through cost tracking (BerriAI#29730) * fix(proxy): recognize *.cognitiveservices.azure.com as OpenAI-compatible Azure OpenAI resources created via the newer "Azure AI Foundry" / Cognitive Services pathway live on `*.cognitiveservices.azure.com` subdomains, not the older `openai.azure.com`. Both are valid Azure OpenAI surfaces in production today. The OpenAI pass-through cost-tracking handler hard-codes only the older hostname in five places (four `is_openai_*_route` methods on OpenAIPassthroughLoggingHandler, plus is_openai_route on PassThroughEndpointLogging). As a result, calls from newer Azure deployments are silently classified as "not an OpenAI route", the dispatch into the cost-tracking handler is skipped, and tokens/cost never get extracted into LiteLLM_SpendLogs — the row gets written with prompt_tokens=0, completion_tokens=0, spend=0, model='unknown'. Reproduced 2026-06-04 against a real Azure OpenAI deployment on `*.cognitiveservices.azure.com` proxied through LiteLLM v1.88.0. Fix: factor the hostname check into a single helper `_is_openai_compatible_host` listing all three recognized surfaces (api.openai.com, openai.azure.com, cognitiveservices.azure.com), and have all five call sites delegate to it. Purely additive — never weakens recognition for the originally-supported hostnames. Adds a test `test_is_openai_route_recognizes_cognitiveservices_azure_com` that exercises all four `is_openai_*_route` static methods against `*.cognitiveservices.azure.com` URLs (positive cases per route + a small cross-route negative to confirm route-specific path matching still works on the new hostname). Out of scope for this PR (separate followup): - `openai_passthrough_handler` calls chat/completions `transform_response` on Responses API payloads (`output:` not `choices:`), which throws inside the dispatch and drops the SpendLogs row entirely. Recognized + tracked separately. * ci: trigger fresh run Empty commit to re-run checks. The previous auth-and-jwt failure was a transient HuggingFace Hub 429 rate-limit hitting tokenizer downloads in tests/proxy_unit_tests/test_custom_tokenizer_bug.py — unrelated to this PR's scope (hostname recognition in pass-through cost tracking). No code change. --------- Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> * fix(responses): preserve forced-function tool_choice name in Responses to Chat transform (BerriAI#29812) The Responses API forces a specific function with a top-level name ({"type": "function", "name": "X"}), but _transform_tool_choice only handled the nested Chat Completions shape and fell through to returning "required" for the flat form, silently dropping the function name and degrading a forced function call to force-any-tool. Map the flat Responses shape to the nested Chat shape, keeping the "required" fallback when no name is present. * Preserve x-anthropic-billing-header system blocks for first-party Anthropic (BerriAI#29584) * Preserve x-anthropic-billing-header system blocks for first-party Anthropic PR BerriAI#20951 strips system blocks beginning with "x-anthropic-billing-header:" for every Anthropic target. That block is how the first-party Anthropic API recognizes Claude Code subscription (OAuth) traffic, so dropping it makes requests that carry only that block, such as the auto-mode tool-safety classifier, fail with a misleading 429 rate_limit_error; normal turns still work because they also carry the "You are Claude Code" identity block. Gate the strip behind should_strip_billing_metadata(), defaulting to False on the first-party AnthropicConfig and AnthropicMessagesConfig so the block is kept, and overridden to True on the providers that reach these transforms and reject the block (Bedrock platform, Vertex, Azure for the chat path; Minimax, Azure, DeepSeek for the messages path). Behavior for those providers is unchanged. * Strip billing header on Bedrock invoke and Vertex messages pass-through Two more subclasses reach the gated strip but inherited keep-by-default. AmazonAnthropicClaudeConfig (Bedrock invoke) calls AnthropicConfig.transform_request, which calls translate_system_message, and VertexAIPartnerModelsAnthropicMessagesConfig (Vertex messages pass-through) calls super().transform_anthropic_messages_request. Override should_strip_billing_metadata() to True on both. Add a parametrized test asserting the flag for every first-party base (False) and provider subclass (True), covering all overrides, plus a translate_system_message regression test for the Bedrock invoke path. * fix(cache): log hashed cache keys (BerriAI#29890) * fix(ui): save routing groups as list (BerriAI#29889) * Revert "fix(ui): save routing groups as list (BerriAI#29889)" (BerriAI#29928) This reverts commit 9b1f78f. * feat(parasail): add Parasail as a JSON-configured OpenAI-compatible provider (BerriAI#29842) * feat(parasail): add Parasail as a JSON-configured OpenAI-compatible provider Registers parasail in the openai_like JSON provider loader with both /v1/chat/completions and /v1/responses support. Parasail's Responses API rejects store:true and any request that omits store, so the loader gains a force_store_false special_handling flag; the parasail entry sets it and the generated Responses config overrides store=false on every call. This keeps callers from hitting "State storage not supported" and matches what Parasail's docs require. Adds the PARASAIL enum value, listing under openai_compatible_providers, provider documentation at docs/my-website/docs/providers/parasail.md, and a focused unit test file under tests/test_litellm/llms/parasail/ that covers JSON registration, chat URL construction, Responses URL construction with PARASAIL_API_BASE override, and the force_store_false regression in both the caller-sent-store=true and caller-omitted cases. * fix(parasail): register in provider_endpoints_support, drop in-repo docs Greptile review feedback. The provider doc belongs in the litellm-docs repo, not this one's docs/my-website tree; removing it here. Adds the parasail entry to provider_endpoints_support.json so the check_provider_folders_documented.py CI check passes (chat_completions and responses true; others false). * fix: normalize Anthropic passthrough server tool usage (BerriAI#29827) * test(anthropic): cover server_tool_use dict cost tracking * fix: normalize Anthropic server tool usage (cherry picked from commit 982f726) * fix: keep server tool usage subscriptable (cherry picked from commit 70280b9) --------- Co-authored-by: Genmin <joey@joeyroth.com> * fix(proxy): fix typo generic_role_mappoings -> generic_role_mappings in ui_sso.py (BerriAI#29753) Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> * feat(proxy): add disable_budget_reservation general setting (BerriAI#27639) (BerriAI#29493) * feat(proxy): add disable_budget_reservation general setting (BerriAI#27639) * feat(proxy): register disable_budget_reservation in ConfigGeneralSettings (BerriAI#27639) * docs(proxy): document disable_budget_reservation concurrency tradeoff (BerriAI#27639) * ci: re-trigger flaky docker build (prisma generate ECONNRESET) * fix(proxy): warn and document budget enforcement tradeoff when disable_budget_reservation is set (BerriAI#27639) * feat(gemini_tts): adding support to Gemini TTS languageCode parameters (BerriAI#29623) * Adding support to Gemini TTS Language Code parameters * Mapping Gemini TTS languageCode param in Docstring * Use snake_case for language_code input keyMapping Gemini TTS languageCode param in Docstring * Restoring files modified under enterprise/litellm_enterprise due to lint/formatting checks --------- Co-authored-by: João Garrido <joaogarrido@google.com> * feat(guardrails): capture user and model metadata in CrowdStrike AIDR (BerriAI#29517) * fix(proxy): require OpenAI path segment for shared Azure Cognitive Services domains Address Greptile review: the `*.cognitiveservices.azure.com` / `*.openai.azure.com` domains are shared by every Azure Cognitive Service (Speech, Vision, Language, ...), so a hostname-only substring match misclassified non-OpenAI Azure traffic as OpenAI routes. - Replace the substring host test with suffix matching (rejects look-alike domains like cognitiveservices.azure.com.attacker.example). - Add `_is_openai_compatible_url` that requires an OpenAI-style path marker (`/openai/` or `/v1/`) on the shared Azure domains, and use it in PassThroughEndpointLogging.is_openai_route (previously hostname-only). - Add negative tests for Azure Speech/Vision paths and look-alike domains. * fix: support Responses input in Redis semantic cache (BerriAI#29581) * fix: support responses input in redis semantic cache * test: cover redis semantic prompt extraction * test: handle blank redis semantic text fallbacks * chore: remove async cache dead statement * test: cover redis semantic cache miss paths * fix: filter sensitive cache lookup kwargs * chore: rerun ci after huggingface rate limit * chore(ui): regenerate dashboard API types (npm run gen:api) Sync src/lib/http/schema.d.ts with the proxy OpenAPI spec: adds the disable_budget_reservation general-settings field and picks up the RateLimitError docstring reindent. Fixes the gen:api CI drift check. * test(bedrock): assert empty additionalModelRequestFields is omitted The Converse transformer now drops an empty additionalModelRequestFields block instead of sending it as `{}`. Update test_bedrock_top_k_param so models without top_k support (llama3) assert the key is absent rather than equal to an empty dict. --------- Co-authored-by: Kent <72616338+kingdoooo@users.noreply.github.com> Co-authored-by: codgician <15964984+codgician@users.noreply.github.com> Co-authored-by: Praveen Ghuge <95286176+pghuge-cloudwiz@users.noreply.github.com> Co-authored-by: Roi <roytev@gmail.com> Co-authored-by: shin-berri <shin-laptop@berri.ai> Co-authored-by: yuneng-jiang <yuneng@berri.ai> Co-authored-by: Liam Scott <liam@uilliam.com> Co-authored-by: abhay23-AI <abhaytrivedi22@gmail.com> Co-authored-by: Ceder Dens <cederdens@gmail.com> Co-authored-by: 冯基魁 <56265583+fengjikui@users.noreply.github.com> Co-authored-by: Kai Huang <kaihuang724@gmail.com> Co-authored-by: rinto <54238243+ririnto@users.noreply.github.com> Co-authored-by: Genmin <joey@joeyroth.com> Co-authored-by: Arnav Bhilwariya <arnavbhilwariya0408@gmail.com> Co-authored-by: Armaan Sandhu <74664101+Ar-maan05@users.noreply.github.com> Co-authored-by: João Garrido <48538534+johngarrido@users.noreply.github.com> Co-authored-by: João Garrido <joaogarrido@google.com> Co-authored-by: Kenan Yildirim <kenan@kenany.me> Co-authored-by: Dávid Balatoni <balcsida@gmail.com>

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codgician force-pushed the ghc-responses branch from defcec7 to 6c4086e Compare June 5, 2026 07:49

fix(github-copilot): route per-model on /v1/responses based on model …

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codgician force-pushed the ghc-responses branch from 6c4086e to ee49fe3 Compare June 5, 2026 09:15

Sameerlite approved these changes Jun 8, 2026

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Sameerlite changed the base branch from litellm_internal_staging to litellm_oss_staging_080626 June 8, 2026 11:57

Sameerlite merged commit 5bd5333 into BerriAI:litellm_oss_staging_080626 Jun 8, 2026
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fix(github-copilot): route per-model on /v1/responses based on model info - #29747

fix(github-copilot): route per-model on /v1/responses based on model info#29747
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