Model releaseHigh global significanceConfirmed confidence
Anthropic releases Claude Sonnet 5.5 for coding and professional tasks
Sonnet 5.5 updates Sonnet 5, with faster output and improved coding and office work at the same base API token prices.
What happened
Event details
Anthropic reports output generation over 30% faster. Base API pricing remains $2 per million input tokens and $10 per million output tokens. The model is available on the Claude Platform, AWS, Google Cloud and Azure. A claim of lower total task cost does not mean lower per-token prices. Haiku 5.5 remains a future release.
Assessment
Why it matters
An officially released model adds a substantive option for developers and users.
79/100Global significance score. Regional effects are recorded only when the evidence supports a meaningful difference.
Availability
Access notes
Available across supported platforms as claude-sonnet-5-5.