Introducing Claude Sonnet 5.5: 30% Faster with Coding Leap at $2
Claude Sonnet 5.5 delivers 30% faster speed, scores 70.6% on Terminal-Bench 4.0, and cuts effective task cost by 30% at unchanged $2/$10 pricing.

New models, tools worth trying, and enough context to understand what's happening in AI.
Claude Opus 5.5 delivers frontier agentic coding and a 1M context window at 40% lower cost than Opus 5, matching Fable 5.1 for enterprise workloads.

Claude Opus 5 delivers superior agentic performance and a 1M context window at half the cost of Fable 5, setting a new baseline for enterprise AI workflows.

Kimi K3 is Moonshot AI's 2.8T-parameter open-weight model that rivals GPT-5.6 and Claude Fable 5 in coding, with a 1M-token context window.

OpenAI releases GPT-5.6 with Sol, Terra, and Luna tiers, featuring advanced reasoning modes, 750 tps Cerebras support, and Zero Data Retention APIs.

Claude Fable 5 is Anthropic's flagship Mythos-class AI model, with a 1-million-token context window and agentic autonomy for long, complex tasks.

Optimize large-scale engineering with dynamic workflows in Claude Code, using JavaScript orchestration to manage parallel agents and durable plans.

Claude Opus 4.8 keeps $5/$25 pricing and 1M context but is 4x less likely to miss its own code flaws, and adds Dynamic Workflows for parallel agents.

Claude Opus 4.7 provides enhanced software engineering autonomy, high-resolution vision, and a new xhigh effort level for advanced professional workflows.
