LaunchAI ModelsJune 30, 2026
Anthropic launches Claude Sonnet 5

Claude Sonnet 5 launches with a native 1M-token context window and introductory pricing of $2/$10 per million tokens through August 31. Anthropic says its performance is close to Opus 4.8 at lower cost, with improved agentic capabilities in reasoning, tool use, and coding.
15 sources
2.1.197code.claude.com
v2.1.197github.com
Introducing Claude Sonnet 5anthropic.com
RT @claudeai: Introducing Claude Sonnet 5, our most agentic Sonnet yet. It makes plans, uses tools...x.com
Claude Sonnet 5 Is Not Frontier But Has Its Usesthezvi.substack.com
[AINews] Sonnet 5 today, and Fable 5 tomorrowlatent.space
What's new in Claude Sonnet 5simonwillison.net
Anthropic launches Claude Sonnet 5 at a steep discount to its top model as the company races toward a blockbuster IPOventurebeat.com
Claude Sonnet 5 now available on Vercel AI Gatewayvercel.com
Anthropic Claude Sonnet 5 vs Sonnet 4.6 vs Opus 4.8: Agentic Coding Benchmarks, API Pricing, and Cost-Performance Tradeoffs Comparedmarktechpost.com
Anthropic’s Claude Sonnet 5 system card says more about the future of AI than its benchmarks dothenewstack.io
Claude Sonnet 5 – benchmark resultsartificialanalysis.ai