← Back to feed
DocsAnthropic
- Severity
- Medium
- Published
- 27 days agoMar 30, 2026
- Signal
- 46
Anthropic raised the max tokens cap to 300k on the Message Batches API for Claude Opus 4.6 and Sonnet 4.6.
We've raised the max tokens cap to 300k on the Message Batches API for Claude Opus 4.6 and Sonnet 4.6. Include the output-300k-2026-03-24 beta header to generate longer single-turn outputs for long-form content, structured data, and large…
Official source entry
Anthropic raised the max tokens cap to 300k on the Message Batches API for Claude Opus 4.6 and Sonnet 4.6.
From Platform Release Notes. The simplified record can be checked against the original wording.
Why it matters
Anthropic updated platform release notes semantics for llms and agents. Review the official entry during the next release review.
Who should care
- ai
Affected stack
- llms
- agents
Categories
modelapi