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Model Selection

Opencode is BYOM (Bring Your Own Model). We support the latest SOTA models from all major providers.

The Titans (SOTA)

  • Claude Opus 4.5 (opencode/claude-opus-4-5)
    • Unmatched reasoning capabilities. The absolute ceiling for complex refactoring and system design.
  • GPT-5.1 Codex Max (opencode/gpt-5.1-codex-max)
    • Fine-tuned specifically for massive codebases. Extremely high adherence to style guides.
  • Kimi K2 Thinking (opencode/kimi-k2-thinking)
    • Excellent CoT (Chain of Thought). Great for debugging subtle race conditions.

Daily Drivers (Speed/Cost)

  • Claude Sonnet 4.5 (opencode/claude-sonnet-4-5)
    • The balanced choice. 30% faster than Opus with 95% of the capability.
  • Qwen 3 Coder (opencode/qwen3-coder)
    • Open weights champion. Runs exceptionally well on local H100s or cloud endpoints.
  • Grok Code (opencode/grok-code)
    • Real-time web search integration. Good for using bleeding-edge libraries.

Specialists & Experimental

  • Gemini 3 Pro (opencode/gemini-3-pro)
    • Unlimited Context. Dump entire repos, logs, and docs for global reasoning.
  • Big Pickle (opencode/big-pickle)
    • Don’t ask.

CLI Usage

opencode config set model opencode/claude-opus-4-5