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’s Sonnet 5.5 materially improves the price-performance equation for enterprise AI, delivering 30%+ faster outputs and up to 30% lower per-task cost than Sonnet 5. For CIOs, that signals a maturing model portfolio strategy: organizations can reserve premium models like Opus for high-stakes work while using Sonnet 5.5 for broader deployment, helping reduce inference spend and expand adoption across more workflows. The planned Haiku 5.5 release suggests Anthropic is sharpening its tiered offering, which could give IT teams more flexibility in matching model capability to business need.