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GLM-5.1

![Z AI](https://artificialanalysis.ai/img/logos/zai_small.svg)Z AI
51/ 57

Intelligence Score

Intelligence

51

#15 of 203 (top 7%)

Speed

48 tok/s

#109 of 131

Price

$2.15

per M tokens

#104 cheapest of 136

Context Window

200K

tokens

Latency: 1ms (#56)

Score Breakdown

Quality Score85%
Speed Score7%
Cost Score81%

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Use This Model

Claude Code

claude --model glm-5-1

API (cURL)

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -d '{
    "model": "glm-5-1",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Vercel AI SDK

import { generateText } from "ai";
import { openrouter } from "@openrouter/ai-sdk-provider";

const { text } = await generateText({
  model: openrouter("glm-5-1"),
  prompt: "Hello",
});
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