feat: add Azure AI DeepSeek V4 Flash 0731 pricing

[yujonglee-berri]

moved to #39341

[greptile-apps]

Greptile Summary

Adds Azure AI DeepSeek V4 Flash 0731 pricing and capability metadata to both model registries.

• Defines input, cached-input, and output token costs.
• Records context limits, retirement date, reasoning, prompt-caching, and tool-calling capabilities.
• Synchronizes the bundled backup registry with the root registry.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains; the previously missing backup entry is now synchronized with the primary registry.

Important Files Changed

Filename	Overview
model_prices_and_context_window.json	Adds schema-compatible pricing, limits, lifecycle, and capability metadata for the Azure AI DeepSeek V4 Flash 0731 model.
litellm/model_prices_and_context_window_backup.json	Adds the same model entry to the bundled backup, resolving the previously reported registry-parity issue.

_{Reviews (2): Last reviewed commit: "fix: sync Azure AI model backup registry" | Re-trigger Greptile}

[codspeed-hq]

Merging this PR will not alter performance

✅ 31 untouched benchmarks

---

_{Comparing litellm_add_azure_deepseek_v4_flash_0731 (1a80b7a) with litellm_internal_staging (b518be4)¹}

Footnotes

1. No successful run was found on litellm_internal_staging (0f84a70) during the generation of this report, so b518be4 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[mateo-berri]

@greptileai

[mateo-berri]

bugbot run

[cursor]

✅ Bugbot reviewed your changes and found no new issues!

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

^{Reviewed by Cursor Bugbot for commit 1a80b7a. Configure here.}

[mateo-berri]

LGTM. Thanks!