Claude Sonnet 5
Claude Sonnet 5 is Anthropic's mid-tier model, released June 30, 2026, priced at $2 per million input tokens and $10 per million output. It scores 55 on the Artificial Analysis Intelligence Index with a 1M-token context window — the price-to-capability pick of the Claude 5 line for production workloads.
Spec sheet
| Maker | Anthropic |
|---|---|
| Released | 2026-06-30 |
| API ID | claude-sonnet-5 |
| Parameters | Not disclosed |
| Context window | 1M tokens |
| Modalities in | text, image |
| Modalities out | text |
| API availability | Anthropic API · AWS Bedrock · Google Vertex AI (unverified) |
| Pricing (per MTok) | $2 in / $10 outas of · source |
Benchmarks
| Benchmark | Score | Measured | Source |
|---|---|---|---|
| AA Intelligence Index | 55 | artificialanalysis.ai |
Dashed values are vendor-published and not yet reproduced in our harness — methodology.
Changelog
- Claude Sonnet 5 released at $2/$10 per MToksource
Head-to-head
Profile published August 11, 2026; data last changed August 11, 2026. Every value carries its own measurement or verification date. Flagged values are best-known public figures pending confirmation.