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Claude Opus 4.7 Thinking is the extended thinking variant of Claude Opus 4.7, available through AnyFast via an OpenAI-compatible interface. With step-by-step internal reasoning enabled by default, it delivers the highest accuracy on the most demanding tasks including advanced mathematics, scientific research, complex coding, and architectural decisions.

Key capabilities

  • OpenAI-compatible — Works as a drop-in replacement with the OpenAI SDK
  • Extended thinking — Step-by-step internal reasoning enabled by default
  • Maximum intelligence — The latest and most capable reasoning model
  • Deep analysis — Excels at advanced math, science, and complex problem solving
  • Long context — Handles large documents and multi-turn conversations
  • Streaming — Supports real-time token streaming via SSE

Quick example

Sampling parameters are deprecated: For AnyFast requests, omit temperature, top_p, and top_k. Anthropic rejects non-default values on Claude Opus 4.7 whether or not Thinking is enabled. A top_p value of 0.99 or greater may be accepted only for backward compatibility and should not be relied on. See Anthropic’s Thinking limits and parameter deprecations.

Parameters

API Reference

View the interactive API playground for Claude Opus 4.7 Thinking.