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Qwen3.5 4B

![Alibaba](https://artificialanalysis.ai/img/logos/alibaba_small.svg)Alibaba
27/ 57

Intelligence Score

Intelligence

27

#97 of 212 (top 46%)

Speed

183 tok/s

#20 of 141

Price

$0.06

per M tokens

#6 cheapest of 142

Context Window

262K

tokens

Latency: 1ms (#23)

Score Breakdown

Quality Score45%
Speed Score23%
Cost Score99%

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Use This Model

Claude Code

claude --model qwen3-5-4b

API (cURL)

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -d '{
    "model": "qwen3-5-4b",
    "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("qwen3-5-4b"),
  prompt: "Hello",
});
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