Grok 3 Fast Beta

Model details

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Grok 3 Fast Beta

Model
xai/grok-3-fast
Provider
vercel-ai-gateway
API
anthropic-messages
Base URL
https://ai-gateway.vercel.sh
Input
text
Reasoning
No
Context window
131,072
Max tokens
131,072
Cost / million input
$5
Cost / million output
$25
Cost / million cache read
$1.25
Cost / million cache write
$0

Also available from other providers

Model config JSON
{
  "providers": {
    "vercel-ai-gateway": {
      "apiKey": "YOUR_API_KEY",
      "models": [
        {
          "id": "xai/grok-3-fast",
          "name": "Grok 3 Fast Beta",
          "reasoning": false,
          "input": [
            "text"
          ],
          "contextWindow": 131072,
          "maxTokens": 131072,
          "cost": {
            "input": 5,
            "output": 25,
            "cacheRead": 1.25,
            "cacheWrite": 0
          }
        }
      ],
      "api": "anthropic-messages",
      "baseUrl": "https://ai-gateway.vercel.sh"
    }
  }
}