Anthropic launches Claude Sonnet 5.5: 30% faster and up to 30% cheaper than Sonnet 5
AnthropicAI · x · 2026-09-29
Anthropic officially released Claude Sonnet 5.5, the second model in the Claude 5.5 family.
- A clear upgrade over Sonnet 5, running more than 30% faster
- Costs up to 30% less for most workloads
- Positioned as the high-value workhorse model; Anthropic also highlighted its design knack — polishing UIs and producing template-based slides that need minimal editing
Related event: Anthropic Launches Claude Sonnet 5.5: Over 30% Faster, Up to 30% Cheaper(58 posts)→
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