Claude Opus 4.7 Fast Mode Opens Research Preview

Claude Opus 4.7快速模式开放研究预览

Claude Opus 4.7 Fast Mode is now available as a research preview in the API and Claude Code. The post does not disclose model parameters, pricing, rate limits, or a general availability date.

Why it matters: HKR-H/K/R pass because this is a Claude fast-mode preview in API and Claude Code, directly tied to developer latency and workflows. Thin disclosure on pricing, limits, parameters, and GA timing keeps it at the featured threshold, not 78+.