fix: update Opus 4.1 max tokens from 8K to 32K #9046

roomote · 2025-11-05T05:16:38Z

Related GitHub Issue

Closes: #9045

Roo Code Task Context (Optional)

N/A

Description

This PR addresses the incorrect max token configuration for the Anthropic Opus 4.1 model. The issue correctly identified that claude-opus-4-1-20250805 had its maxTokens set to 8192, while according to Anthropic's documentation and the configuration of the similar claude-opus-4-20250514 model, it should be 32,000.

Changes made:

Updated maxTokens from 8192 to 32_000 for claude-opus-4-1-20250805
Added inline comment matching the pattern used by other reasoning-capable models to indicate the override behavior when enableReasoningEffort is false

This change ensures both Opus 4 model variants have consistent configuration and enables the larger context window that users require.

Test Procedure

Testing performed:

Ran npm test in the types package - all 43 tests pass successfully
Ran npm run lint - no linting issues
Ran npm run check-types - type checking passes

How to verify:

Check out this branch
Navigate to packages/types/src/providers/anthropic.ts line 52
Verify that claude-opus-4-1-20250805 now has maxTokens: 32_000
Run cd packages/types && npm test to ensure tests pass

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.
Testing: New and/or updated tests have been added to cover my changes (if applicable).
Documentation Impact: I have considered if my changes require documentation updates (see "Documentation Updates" section below).
Contribution Guidelines: I have read and agree to the Contributor Guidelines.

Screenshots / Videos

N/A - Configuration change only

Documentation Updates

No documentation updates are required.

This is a configuration value correction that aligns with existing Anthropic documentation.

Additional Notes

This is a straightforward configuration fix that brings consistency between the two Opus 4 model variants. The change follows the existing code patterns and conventions used throughout the file.

Get in Touch

Available via GitHub for any questions about this PR

Important

Update maxTokens for claude-opus-4-1-20250805 in anthropic.ts from 8192 to 32_000 to align with documentation.

Behavior:
- Updated maxTokens from 8192 to 32_000 for claude-opus-4-1-20250805 in anthropic.ts.
- Added inline comment for maxTokens override behavior when enableReasoningEffort is false.
Testing:
- Ran npm test in types package; all tests passed.
- Ran npm run lint and npm run check-types; no issues found.

^{This description was created by}^{for f714a0c. You can customize this summary. It will automatically update as commits are pushed.}

Aligns claude-opus-4-1-20250805 max token limit with claude-opus-4-20250514, both models now supporting 32K output tokens (overridable to 8K when enableReasoningEffort is false). Fixes #9045

roomote · 2025-11-05T05:17:00Z

Review complete. No issues found - the change correctly updates claude-opus-4-1-20250805 max tokens from 8192 to 32,000, aligning with the similar claude-opus-4-20250514 model and Anthropic's documentation.

_{Mention @roomote in a comment to trigger your PR Fixer agent and make changes to this pull request.}

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fix: update Opus 4.1 max tokens from 8K to 32K

f714a0c

Aligns claude-opus-4-1-20250805 max token limit with claude-opus-4-20250514, both models now supporting 32K output tokens (overridable to 8K when enableReasoningEffort is false). Fixes #9045

roomote bot requested review from cte, jr and mrubens as code owners November 5, 2025 05:16

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dosubot bot added size:XS This PR changes 0-9 lines, ignoring generated files. bug Something isn't working labels Nov 5, 2025

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Change max token of Opus 4.1 from 8K to 32K #9045

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fix: update Opus 4.1 max tokens from 8K to 32K #9046

fix: update Opus 4.1 max tokens from 8K to 32K #9046

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roomote bot commented Nov 5, 2025 •

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fix: update Opus 4.1 max tokens from 8K to 32K #9046

fix: update Opus 4.1 max tokens from 8K to 32K #9046

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