feat(xai): add grok-4.3 and grok-4.3-latest to model_prices_and_conte…

[ishaan-berri]

…xt_window.json

xAI's docs page now lists grok-4.3 as the recommended chat / coding model: "We strongly recommend all API callers use grok-4.3. It is the most intelligent and fastest model we've built." (https://docs.x.ai/docs/models)

Pricing/specs sourced from xAI's published model metadata:

• input: $1.25 / 1M tokens (<=200k), $2.50 / 1M tokens (>200k)
• output: $2.50 / 1M tokens (<=200k), $5.00 / 1M tokens (>200k)
• cached: $0.20 / 1M tokens (<=200k), $0.40 / 1M tokens (>200k)
• context: 1,000,000 tokens
• capabilities: vision, reasoning, function calling, structured outputs, prompt caching, web search

Adds two entries: xai/grok-4.3 (canonical) and xai/grok-4.3-latest (alias), mirroring the pattern used for the rest of the xAI/Grok-4 family.

Relevant issues

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Type

🆕 New Feature
🐛 Bug Fix
🧹 Refactoring
📖 Documentation
🚄 Infrastructure
✅ Test

Changes

---

Note

Low Risk
Low risk: purely data additions to model metadata JSON plus tests; main risk is incorrect pricing/capability flags affecting cost estimation and routing for the new model names.

Overview
Adds xai/grok-4.3 and xai/grok-4.3-latest to model_prices_and_context_window.json (and the bundled litellm/model_prices_and_context_window_backup.json) with updated pricing tiers, 1M context limits, and capability flags (prompt caching, reasoning, response schema, vision, web search).

Introduces tests/test_litellm/test_xai_grok_4_3_model_metadata.py to assert the new entries’ metadata values, confirm get_llm_provider() routes them to the xai provider, and ensure the backup cost map stays in sync for these models.

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[greptile-apps]

Greptile Summary

Adds xai/grok-4.3 and xai/grok-4.3-latest to the model cost and context-window registry, covering pricing tiers (standard and >200k-token), capability flags, and a 1M-token context window — sourced from xAI's published model page.

• Both the canonical model_prices_and_context_window.json and the bundled backup are updated in the same commit, keeping local-fallback mode in sync.
• A new test file validates all metadata fields, above-200k pricing tiers, provider routing, and main/backup parity without making any network calls.

Confidence Score: 5/5

Safe to merge — the change is confined to JSON metadata additions and a new local-only test file.

The change adds two JSON entries and a test file. Both the main registry and the backup are updated in the same commit. The new entries follow the established pattern of sibling grok-4.x models, all fields (pricing, token limits, capability flags) are internally consistent, and the new tests cover metadata, routing, and backup/main sync without any network calls.

No files require special attention.

Important Files Changed

Filename	Overview
model_prices_and_context_window.json	Adds xai/grok-4.3 and xai/grok-4.3-latest entries with correct pricing, context window, and capability flags, consistent with the existing grok-4.x family pattern.
litellm/model_prices_and_context_window_backup.json	Backup file correctly updated with the same two new entries, keeping it in sync with the canonical JSON — the previously flagged gap has been addressed in this revision.
tests/test_litellm/test_xai_grok_4_3_model_metadata.py	New test file covers metadata fields, pricing tiers, capability flags, provider routing, and main/backup sync; reads only local files with no network calls.

_{Reviews (2): Last reviewed commit: "test(xai): add model_info test for grok-..." | Re-trigger Greptile}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[mateo-berri]

bugbot run

[mateo-berri]

@greptileai

[cursor]

✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

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[mateo-berri]

LGTM; thanks!