Elon Musk’s xAI released Grok 4.7 for coding and knowledge work at $2 per million input tokens and $6 per million output tokens. On Artificial Analysis Intelligence Index v4.3.2 it scores 46 versus 53 for Claude Fable 5.1 and GPT-6; on Terminal-Bench 4.0 it reaches 26% against 60% for GPT-6 Astra an