← Models
Claude Sonnet 4.5
Anthropic · proprietary · claude-sonnet-4-5-20250929
Claude Sonnet 4.5 is the best coding model in the world. It's the strongest model for building complex agents. It’s the best model at using computers. And it shows substantial gains in reasoning and math. Highest intelligence across most tasks with exceptional agent and coding capabilities.
Benchmark scores
| Benchmark | Score |
|---|---|
| MMMLU | 0.89 |
| AIME 2025 | 0.87 |
| GPQA | 0.83 |
| SWE-bench Verified (Agentic Coding) | 0.77 |
Pricing
- Anthropic$3.00 / $15.00
Input / output per 1M tokens
AA metrics
No Artificial Analysis link yet.
Arena Elo
- No Arena snapshot linked.