Anthropic 宣布 Claude Opus 4.6 和 API 重大更新

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Anthropic Announces Major Updates for Claude Opus 4.6 and API =============================================================

Anthropic Announces Major Updates for Claude Opus 4.6 and API =============================================================  ### Alex Albert

@alexalbert__

Tons of improvements shipped with this one:

• Opus 4.6 1M is now the default Opus model for Claude Code users on Max, Team, and Enterprise plans.

• No more long context price increase in the API.

• No beta header required in the API.

• Include up to 600 images in one request.

#### Claude

@claudeai · 9h ago

1 million context window: Now generally available for Claude Opus 4.6 and Claude Sonnet 4.6.

!Image 4: Tweet image

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Mar 13, 2026, 6:22 PM View on X

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96.4K Views  Alex Albert @alexalbert__

One Sentence Summary

Anthropic rolls out 1M context window for Claude Opus 4.6, removes API beta headers, and eliminates long context price increases.

Summary

Alex Albert from Anthropic highlights several key updates: Claude Opus 4.6 with a 1M context window is now the default for high-tier Claude Code users (Max, Team, Enterprise). Crucially, the API no longer charges extra for long context, removes the beta header requirement, and now supports up to 600 images in a single request. This marks the General Availability (GA) of the 1M context window for both Opus and Sonnet 4.6.

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88

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Claude 4.6

Anthropic

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Anthropic Announces Major Updates for Claude Opus 4.6 and... ===============