Claude Sonnet 5
Claude Sonnet 5 — Anthropic multimodal model with an Intelligence Index of 53, a 1M-token context window and a blended price of $0.9/1M tokens.
Key specifications
| Intelligence Index | 53 |
|---|---|
| Coding Index | 71.5 |
| Agentic Index | 46.7 |
| Arena Elo | 1,388 |
| Context window (K tokens) | 1,000 |
| Blended price ($/1M tokens) | 0.9 |
| Output speed (tokens/s) | 71 |
About Claude Sonnet 5
The Claude Sonnet 5 is a multimodal model from Anthropic with an Intelligence Index of 53.0, a Coding Index of 71.5 and a 1 million-token context window. It runs at a blended price of $0.90 per million tokens and generates about 71 tokens/s. It is proprietary api. Leaderboard indices are a strong signal but only part of real-world quality, which also depends on tool use, latency and task fit.
The comparisons below show how Claude Sonnet 5 stacks up against the alternatives people most often weigh against it, with the specific numbers laid out side by side.
Frequently asked questions
Is the Claude Sonnet 5 any good?
Claude Sonnet 5 — Anthropic multimodal model with an Intelligence Index of 53, a 1M-token context window and a blended price of $0.9/1M tokens.
What are the key specs of the Claude Sonnet 5?
See the specification table above for the full breakdown.