Claude Opus 4.6 / Sonnet 4.6 全量开放 1M token 上下文，长文本不再额外加价

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Claude (https://claude.com/blog/1m-context-ga)

1M context is now generally available for Opus 4.6 and Sonnet 4.6 | Claude (https://claude.com/blog/1m-context-ga)
Standard pricing now applies across the full 1M window for both models, with no long-context premium. Media limits expand to 600 images or PDF pages.