PR #25865: [Feat] add claude-opus-4-7 to model cost map

• Repository: BerriAI/litellm
• Author: Shion1305
• State: closed | merged: False
• Link: https://github.com/BerriAI/litellm/pull/25865

Description (problem / solution / changelog)

[Feat] add claude-opus-4-7 to model cost map

Fixes #25864

Anthropic released Claude Opus 4.7 today: https://www.anthropic.com/news/claude-opus-4-7

Pricing remains the same as Opus 4.6: $5 per million input tokens and $25 per million output tokens.

This PR mirrors the shape of #20506 (which introduced claude-opus-4-6):

• claude-opus-4-7 (litellm_provider anthropic) — field-for-field identical to claude-opus-4-6
• azure_ai/claude-opus-4-7 (litellm_provider azure_ai) — field-for-field identical to azure_ai/claude-opus-4-6

No dated variant is included, since Anthropic's docs currently publish claude-opus-4-7 as both the ID and the alias (the same pattern as claude-sonnet-4-6). Bedrock / Vertex / regional / Perplexity / OpenRouter variants can follow in separate PRs, matching the 4.6 rollout.

Both model_prices_and_context_window.json and litellm/model_prices_and_context_window_backup.json receive identical additions.

Pre-Submission checklist

• My PR's scope is as isolated as possible, it only solves 1 specific problem
• JSON files validated with python -m json.tool
• New entries byte-for-byte field parity with their claude-opus-4-6 counterparts
• Unit test — deferred: the equivalent PR #20506 for 4.6 landed with JSON-only changes; happy to add a test if reviewers prefer.

Changed files

• litellm/model_prices_and_context_window_backup.json (modified, +58/-0)
• model_prices_and_context_window.json (modified, +58/-0)