Anthropic releases Sonnet 5.5, saying it generates outputs 30%+ faster than Sonnet 5 and costs up to 30% less per task, and plans to release Haiku 5.5 soon (Anthropic)
Anthropic is positioning Sonnet 5.5 as the faster, cheaper everyday-work model in the Claude 5.5 lineup.
The company says Sonnet 5.5 is more than 30% faster than Sonnet 5 and can cut task costs by up to 30% for most work. It describes the model as a complement to Opus 5.5, aimed at well-scoped tasks like bug fixes and feature iteration. Anthropic also says Sonnet 5.5 improves or matches Sonnet 5 on most alignment and honesty measures, with cyber safeguards added. Haiku 5.5 is planned to follow soon. Techmeme's note
The company says Sonnet 5.5 is more than 30% faster than Sonnet 5 and can cut task costs by up to 30% for most work. It describes the model as a complement to Opus 5.5, aimed at well-scoped tasks like bug fixes and feature iteration. Anthropic also says Sonnet 5.5 improves or matches Sonnet 5 on most alignment and honesty measures, with cyber safeguards added. Haiku 5.5 is planned to follow soon. Techmeme's note
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