2026-08-12
xAI ships Grok 4.6, aimed at long-running agents
xAI released Grok 4.6 on August 12, 2026, built on Grok 4.5 with a focus on long-running agents and interactive or visual work — staying with a task across many steps, and self-testing its own output on extended runs. Pricing is $2 per million input tokens and $6 per million output tokens, with a faster variant at double that. xAI says it matches GPT-5.6 Sol on the Artificial Analysis Intelligence Index.