Grok 4.7

xAI's frontier model for coding and knowledge work.

Knowledge cutoff May 2026. xAI has not published a maximum output length. Reasoning effort is low, medium, high (default) or xhigh. $0.05/$0.10 per M below 200K prompt tokens; cached input $0.05/M.

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{
  "model": "grok-4-7",
  "messages": [
    {
      "role": "user",
      "content": "Hello, world."
    }
  ]
}