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Claude Opus 4.1 is Anthropic’s most capable and intelligent model, available through Starrise AI via OpenAI-compatible interface. It delivers top-tier performance on the most demanding tasks, including complex research, advanced coding, mathematical reasoning, and deep analysis.

Key Capabilities

  • OpenAI-compatible — Drop-in replacement for the OpenAI SDK, no other code changes needed
  • Best-in-class reasoning — Highest accuracy on complex multi-step problems
  • Advanced coding — Expert at large-scale code generation, debugging, and architecture design
  • Long context — Supports large document processing and multi-turn conversations
  • Streaming — Real-time token streaming via SSE
  • Research-grade — Ideal for tasks requiring maximum intelligence and thoroughness

Quick Example

Parameters

API Reference

View the interactive API Playground for Claude Opus 4.1.