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Anthropic·May 12, 2026·Opus 4.7 Fast Mode (Research Preview)·AI Models
Claude Opus 4.7 Fast Mode
Claude Opus 4.7 Fast Mode is a research preview enabling significantly faster output token generation for Claude Opus 4.7 — Anthropic's most capable model. Access it via the API by setting speed: "fast" with the fast-mode-2026-02-01 beta header. Pricing and rate limits match Opus 4.6 fast mode.
ClaudeAnthropicAPIFast InferenceLLM
overview
Claude Opus 4.7 Fast Mode is a research preview enabling significantly faster output token generation for Claude Opus 4.7 — Anthropic's most capable model. Access it via the API by setting speed: "fast" with the fast-mode-2026-02-01 beta header. Pricing and rate limits match Opus 4.6 fast mode.
key features
- 01Significantly faster output token generation for Claude Opus 4.7
- 02Access via API with speed: "fast" and fast-mode-2026-02-01 beta header
- 03Same pricing and rate limits as Opus 4.6 fast mode; waitlist access available
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