Grok Web Search Chat

Choose this endpoint when you need an AI chat response grounded in current, real-time web information — especially for recent events, live data, or fact-checking tasks. Prefer this over standard Grok chat when recency matters and the model's training cutoff would be insufficient. Use the domain filter feature when you need answers sourced from specific trusted websites. Prefer X Search instead when the information you need lives primarily on X (Twitter).

• Missing required 'model' field returns validation error
• Model name not from grok-4 family may return unsupported model error
• Messages array empty or malformed returns bad request
• Exceeding domain filter limits (max 5 allowed/excluded domains) returns parameter error
• Invalid temperature value outside 0.0–2.0 range returns validation error
• Payment failure or insufficient USDC balance returns 402 error
• Rate limiting may return 429 if too many requests are made