Anthropic
Claude Opus 5.5
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5.
Best for: Large codebases, multi-step changes, careful analysis, and long documents.
Capabilities
- ✓Step-by-step reasoning
- ✓Web search
- ✓Adjustable reasoning effort
- ✓Image understanding
- ✓File/document understanding
- ✓Image generation(drawn by GPT Image, Gemini or Grok — your pick)