Anthropic Launches Claude Sonnet 5.5 With 30% Speed Boost and Lower Costs for Developer Workflows

Anthropic has released Claude Sonnet 5.5, a significantly faster and more efficient model that delivers near-Opus-level performance at mid-tier pricing. Available immediately across AWS, Google Cloud, and Microsoft Azure, Sonnet 5.5 improves upon its predecessor with 30% faster output generation, more efficient token usage enabling up to 20% lower costs per task, and dramatic improvements in agentic coding capabilities that position it as a competitive choice for production workloads.