Claude Sonnet 5.5 goes live with a claimed 30%-plus speed gain
A September 29 AI brief says Sonnet 5.5 is available on Anthropic's Platform and in Claude Code. It relays a claim that the model is 30%-plus faster and up to 30% cheaper per task, while keeping Sonnet 5's list prices.
TLDR
A September 29 AI brief says Claude Sonnet 5.5 is live on Anthropic's Platform and in Claude Code, with the same $2 per million input tokens and $10 per million output tokens pricing as Sonnet 5. It relays Anthropic's claim of 30%-plus faster performance and up to 30% lower cost per task. Another post, citing Artificial Analysis, says using the model at Max effort brought standardized task cost to about $7.60.
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