GLM 5.1

Model details

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GLM 5.1

Model
zai/glm-5.1
Provider
vercel-ai-gateway
API
anthropic-messages
Base URL
https://ai-gateway.vercel.sh
Input
text
Reasoning
Yes
Context window
202,800
Max tokens
64,000
Cost / million input
$1.4
Cost / million output
$4.4
Cost / million cache read
$0.26
Cost / million cache write
$0

Also available from other providers

Model config JSON
{
  "providers": {
    "vercel-ai-gateway": {
      "apiKey": "YOUR_API_KEY",
      "models": [
        {
          "id": "zai/glm-5.1",
          "name": "GLM 5.1",
          "reasoning": true,
          "input": [
            "text"
          ],
          "contextWindow": 202800,
          "maxTokens": 64000,
          "cost": {
            "input": 1.4,
            "output": 4.4,
            "cacheRead": 0.26,
            "cacheWrite": 0
          }
        }
      ],
      "api": "anthropic-messages",
      "baseUrl": "https://ai-gateway.vercel.sh"
    }
  }
}