Add Claude Sonnet 4 and Claude Opus 4 models with thinking variants

[shariqriazz]

adds claude 4 sonnet / opus with thinking variant to anthropic, vertex, bedrock

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Important

Add Claude Sonnet 4 and Claude Opus 4 models with thinking variants to the system, updating anthropic.ts and api.ts.

• Models Added:
  • Added claude-sonnet-4-20250514 and claude-opus-4-20250514 models with thinking variants to anthropicModels, bedrockModels, and vertexModels in api.ts.
• Behavior:
  • Updated AnthropicHandler in anthropic.ts to handle new models and their thinking variants.
  • Added support for thinking-128k variants in createMessage() and getModel() methods.
• Misc:
  • Updated PROMPT_CACHING_MODELS and COMPUTER_USE_MODELS sets in api.ts to include new models.

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[mrubens]

I think this isn't quite right

[shariqriazz]

sorry i am too sleep deprived idk how i managed to even close this lol thanks @cte

[cte]

@shariqriazz - Mind if we use this a the official Claude 4 PR?

[shariqriazz]

@shariqriazz - Mind if we use this a the official Claude 4 PR?

not at all we good :)

[lupuletic]

Hey! I think the vertex models are missing the @

I just tested it and it doesn't work - @mrubens @shariqriazz

Update: tried locally with @ and it works now with:

• claude-sonnet-4@20250514:thinking
• claude-opus-4@20250514:thinking

[mrubens]

Thank you! #3849