Grok 4.7 rolls into Copilot and reaches 94% in Vercel’s Next.js agent eval
xAI released Grok 4.7 on 21 September with a 500,000-token context window, text and image input, four reasoning levels and API pricing from $2 per million input tokens and $6 per million output tokens, while GitHub is rolling it into Copilot. Vercel’s 22 September Next.js agent eval puts Grok 4.7 with OpenCode at 94% success and $0.109 average list cost, close to three 97% model-agent entries but on a benchmark-specific, cross-harness comparison.