Claude Opus 4.5
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...
The figures
- Made by
- Anthropic
- Model ID
- anthropic/claude-opus-4.5
- Input
- $5 per million tokens
- Output
- $25 per million tokens
- Context window
- 200K tokens
- Longest answer
- 64K tokens
- Takes in
- file, image, text
- Gives back
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Reads images
- Yes
- Open weights
- No
- Released
- 24 Nov 2025
Read on 3 Oct 2026.