openclaw - 💡(How to fix) Fix Anthropic API Migration Required: Sonnet 4.6 Model Name and Header Changes [1 comments, 2 participants]

TL;DR

Update the Anthropic provider to use the new model string format and remove the beta header to ensure compatibility with Sonnet 4.6.

Guidance

• Review the current implementation of the Anthropic provider and identify areas where the model string format needs to be updated to claude-sonnet-4-6-[version].
• Remove the anthropic-beta: context-1m-2025-08-07 header from API requests, as the 1M context is becoming standard.
• Update model aliases (sonnet, opus) to point to the new versions of the models.
• Perform thorough testing of API compatibility after making these changes to ensure a smooth transition.

Example

No code snippet is provided as the issue does not contain specific code references.

Notes

The priority of this task is high, and the changes need to be made before the release of Sonnet 4.6 to avoid breaking the existing Anthropic integration. The reporter's unavailability for the next 2 weeks adds urgency to completing these tasks promptly.

Recommendation

Apply the workaround by updating the Anthropic provider according to the specified changes, as the release of Sonnet 4.6 is imminent and incompatibility issues are expected if no action is taken.