Claude Sonnet 4.5
Anthropic · USA — Provider website
Official links
Pricing & capacity
- Avg cost
- $1.57 per run
- Input price
- $3.00 / 1M tokens
- Output price
- $15.00 / 1M tokens
- Context window
- 200K
Capabilities
- Vision
- Yes
- Reasoning
- Yes
- Tool calls
- Yes
- Cursor
- Yes
- OpenRouter
- Yes
Agent scores
- Overall
- 53.0%
- Issue Resolution
- 74.2%
- Frontend
- 36.8%
- Greenfield
- 12.5%
- Testing
- 68.8%
- Information Gathering
- 72.7%
Notes
Strong issue resolution at a lower price than Opus. Very weak greenfield—best for maintaining and debugging existing codebases.