Model profile
Claude Sonnet 4.5
Best for coding and code review
AnthropicProprietaryNo. 2 overall
Editor's verdict
Our coding tab leader and the model professional developers reach for first. The sweet spot of capability versus cost for serious daily work.
Where it wins
- Best-in-class code generation and refactoring judgment
- Excellent long-document analysis with few dropped threads
- Clean, natural prose for marketing and documentation
Watch-outs
- Refuses edge-case requests more eagerly than rivals
- 200K context trails Google's 1M for huge corpora