The whole hunk
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118118| Model | Agent Platform API model ID |
119119| ---------------------------- | --------------------------- |
120| Claude Fable 5.1 | claude-fable-5-1 |
120121| Claude Fable 5 | claude-fable-5 |
121122| Claude Opus 5 | claude-opus-5 |
122123| Claude Opus 4.8 | claude-opus-4-8 |
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365366
366367### Context window
367368
368Claude Fable 5, Claude Opus 5, Claude Opus 4.8, Claude Opus 4.7, Claude Opus 4.6, Claude Sonnet 5, and Claude Sonnet 4.6 have a [1M-token context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) on Agent Platform. Other Claude models, including Sonnet 4.5 and Sonnet 4 (deprecated), have a 200k-token context window.
369Claude Fable 5.1, Claude Fable 5, Claude Opus 5, Claude Opus 4.8, Claude Opus 4.7, Claude Opus 4.6, Claude Sonnet 5, and Claude Sonnet 4.6 have a [1M-token context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) on Agent Platform. Other Claude models, including Sonnet 4.5 and Sonnet 4 (deprecated), have a 200k-token context window.
369370
370371Agent Platform limits request payloads to 30 MB. When sending large documents or many images, you might reach this limit before the token limit.
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