feat: add claude 4 models to vertex ai specs

[plucked]

Related GitHub Issue

Closes: #3842

Description

Claude 4 models are released and this PR is adding them to the list of VertexAI models.
Blog Post by Anthropic: https://www.anthropic.com/news/claude-4

Test Procedure

Type of Change

• 🐛 Bug Fix: Non-breaking change that fixes an issue.
• ✨ New Feature: Non-breaking change that adds functionality.
• 💥 Breaking Change: Fix or feature that would cause existing functionality to not work as expected.
• ♻️ Refactor: Code change that neither fixes a bug nor adds a feature.
• 💅 Style: Changes that do not affect the meaning of the code (white-space, formatting, etc.).
• 📚 Documentation: Updates to documentation files.
• ⚙️ Build/CI: Changes to the build process or CI configuration.
• 🧹 Chore: Other changes that don't modify src or test files.

Pre-Submission Checklist

• Issue Linked: This PR is linked to an approved GitHub Issue (see "Related GitHub Issue" above).
• Scope: My changes are focused on the linked issue (one major feature/fix per PR).
• Self-Review: I have performed a thorough self-review of my code.
• Code Quality:
  • My code adheres to the project's style guidelines.
  • There are no new linting errors or warnings (npm run lint).
  • All debug code (e.g., console.log) has been removed.
• Testing:
  • New and/or updated tests have been added to cover my changes.
  • All tests pass locally (npm test).
  • The application builds successfully with my changes.
• Branch Hygiene: My branch is up-to-date (rebased) with the main branch.
• Documentation Impact: I have considered if my changes require documentation updates (see "Documentation Updates" section below).
• Changeset: A changeset has been created using npm run changeset if this PR includes user-facing changes or dependency updates.
• Contribution Guidelines: I have read and agree to the Contributor Guidelines.

Screenshots / Videos

Documentation Updates

Does this PR necessitate updates to user-facing documentation?

• No documentation updates are required.
• Yes, documentation updates are required. (Please describe what needs to be updated or link to a PR in the docs repository).

Additional Notes

Get in Touch

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Important

Add Claude 4 models to Vertex AI specs in src/shared/api.ts, including claude-sonnet-4 and claude-opus-4 with detailed attributes and pricing.

• Models:
  • Added claude-sonnet-4@20250514:thinking and claude-sonnet-4@20250514 to vertexModels in src/shared/api.ts.
  • Added claude-opus-4@20250514:thinking and claude-opus-4@20250514 to vertexModels in src/shared/api.ts.
• Attributes:
  • Models support maxTokens, contextWindow, supportsImages, supportsComputerUse, supportsPromptCache.
  • Pricing details include inputPrice, outputPrice, cacheWritesPrice, cacheReadsPrice.

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[mrubens]

Do we still want this many max tokens for the non-thinking version?

[plucked]

Updated it here as well

[mrubens]

Same question here - maybe we should make this 8192 like 3.7

[plucked]

will do

[plucked]

I updated it to 8192, you were right, that value is more reasonable

[plucked]

Here are screenshots as proof of working

[plucked]

looks like a similar PR was merged, will close this

[mrubens]

Thank you for the PR!