Claude Sonnet 5.5
28 September 2026
Claude Sonnet 5.5 from Anthropic, language,multimodal,vision model published 2026-09-28. Notable for: discretionary.
Where it runs
| Provider | Model id | Context | Input | Output |
|---|---|---|---|---|
| OpenRouter | anthropic/claude-sonnet-5.5 | 1M | $2.00/M | $10/M |
Abstract
Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Claude Sonnet 5, runs 30%+ faster, and costs up to 30% less for most work.
Sources: Epoch AI, OpenRouter. This entry was generated from a dataset and has not been edited by hand.