OpenAIAnthropicGooglexAIPerplexity
← Back to all updatesPublished ·Anthropic• Minor
Anthropic raised Message Batches API max_tokens to 300k for Claude Opus 4.6 and Sonnet 4.6.
The read
Batch jobs now produce longer single-turn outputs for long-form content, structured data, and large code generation tasks.
The frame
It sits next to Sonnet 1M context beta retirement, so extended input and extended batch output are separate knobs.
Primary source
Anthropic →Keep reading
See what Nova3 builds →Related updates
- Jun 12, 2026Anthropic publicly documented stop_details on refusal responses, with category and explanation fields for routing.
- Jun 12, 2026Claude Opus 4.8 defaults the effort parameter to high across all surfaces.
- Jun 12, 2026Claude Opus 4.8 lowers prompt caching’s minimum cacheable prompt length to 1,024 tokens versus Opus 4.7.
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