xAI releases Grok 4.6

xAI/Grok

xAI released Grok 4.6, aimed at long-running agents and turning ambitious coding and visual ideas into working first versions. It scores 61 on the Artificial Analysis Intelligence Index, up from 56 for Grok 4.5 and level with GPT-5.6 Sol, one point behind Claude Fable 5. Price stays at $2/$6 per million input/output tokens.

• Trained with more reasoning data and reinforcement learning on agent tasks: coding, kernel optimisation, web development and CAD
• Checks and verifies its own work before moving on in long task chains
• CursorBench 3.2 69.9%, DeepSWE 1.1 65.9%, FrontierCode 1.1 61.3%
• Available in Grok Build, Cursor and the xAI API, plus OpenRouter, Vercel and Cloudflare; a fast variant costs double