fix(azure_ai): return AzureAnthropicConfig for Claude models in get_provider_chat_config#18086
Merged
1 commit merged intoBerriAI:litellm_staging_12_17_2025from Dec 17, 2025
Conversation
…rovider_chat_config Claude models on Azure AI were incorrectly using AzureAIStudioConfig, causing tool calls to fail with invalid_request_error because tools remained in OpenAI format instead of being transformed to Anthropic format.
|
The latest updates on your projects. Learn more about Vercel for GitHub.
|
ghost
merged commit 5765802
into
BerriAI:litellm_staging_12_17_2025
4 of 7 checks passed
This pull request was closed.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Claude models on Azure AI were incorrectly using AzureAIStudioConfig, causing tool calls to fail with invalid_request_error because tools remained in OpenAI format instead of being transformed to Anthropic format.
Relevant issues
(no open bug regarding this issue that I found)
Pre-Submission checklist
tests/litellm/directorymake test-unitType
🐛 Bug Fix
Changes
ProviderConfigManager.get_provider_chat_config()now returnsAzureAnthropicConfigfor Claude models on theazure_aiprovider, matching the existing pattern for Vertex AI andget_provider_anthropic_messages_config().Without this fix, Claude models on Azure AI receive tools in OpenAI format (
type: "function") instead of Anthropic format, causing the Azure Anthropic endpoint to reject requests withinvalid_request_error.