Qwen 3.7 API

Complete API reference for Qwen 3.7 LLM models powered by Alibaba.

Model Variants

This API supports four Qwen 3.7 model variants:

Quick Comparison

Qwen 3.7 Max Text to Text

Endpoint

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POST /api/v1/chat/completions

Request Parameters

Required

Message Support

Optional

Example Request

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const response = await fetch('https://api.flaq.ai/api/v1/chat/completions', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Accept': 'text/event-stream',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    model: 'qwen-3.7-max-text-to-text',
    messages: [
      {
        role: 'user',
        content: 'Explain the concept of attention mechanisms in neural networks.'
      }
    ],
    stream: true,
    max_tokens: 2048
  })
});

Qwen 3.7 Plus Text to Text

Endpoint

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POST /api/v1/chat/completions

Request Parameters

Required

Message Support

Optional

Example Request

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const response = await fetch('https://api.flaq.ai/api/v1/chat/completions', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Accept': 'text/event-stream',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    model: 'qwen-3.7-plus-text-to-text',
    messages: [
      {
        role: 'user',
        content: 'Explain the concept of attention mechanisms in neural networks.'
      }
    ],
    stream: true,
    max_tokens: 2048
  })
});

Qwen 3.7 Max Web Search

Endpoint

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POST /api/v1/chat/completions

Request Parameters

Required

Message Support

Optional

Example Request

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const response = await fetch('https://api.flaq.ai/api/v1/chat/completions', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Accept': 'text/event-stream',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    model: 'qwen-3.7-max-web-search',
    messages: [
      {
        role: 'user',
        content: 'What are the latest developments in quantum computing this year?'
      }
    ],
    stream: true,
    max_tokens: 2048
  })
});

Qwen 3.7 Plus Web Search

Endpoint

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POST /api/v1/chat/completions

Request Parameters

Required

Message Support

Optional

Example Request

javascriptCopy
const response = await fetch('https://api.flaq.ai/api/v1/chat/completions', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Accept': 'text/event-stream',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    model: 'qwen-3.7-plus-web-search',
    messages: [
      {
        role: 'user',
        content: 'What are the latest developments in quantum computing this year?'
      }
    ],
    stream: true,
    max_tokens: 2048
  })
});

Response Format

Qwen 3.7 LLM models return OpenAI-compatible completion responses. With stream: true, the response is Server-Sent Events; with stream: false, the response is a single JSON object.

Successful Response

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data: {"id":"chatcmpl-...","object":"chat.completion.chunk","created":1710000000,"model":"qwen-3.7-max-text-to-text","choices":[{"index":0,"delta":{"role":"assistant"},"finish_reason":null}]}

data: {"id":"chatcmpl-...","object":"chat.completion.chunk","created":1710000000,"model":"qwen-3.7-max-text-to-text","choices":[{"index":0,"delta":{"content":"Here is a concise explanation"},"finish_reason":null}]}

data: {"id":"chatcmpl-...","object":"chat.completion.chunk","created":1710000000,"model":"qwen-3.7-max-text-to-text","choices":[{"index":0,"delta":{},"finish_reason":"stop"}]}

data: {"id":"chatcmpl-...","object":"chat.completion.chunk","created":1710000000,"model":"qwen-3.7-max-text-to-text","choices":[],"usage":{"prompt_tokens":12,"completion_tokens":8,"total_tokens":20}}

data: [DONE]

Error Response

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event: error
data: {"error":{"message":"API requests too frequent, exceeding rate limit","type":"rate_limit_error","code":"1302","param":null}}

Best Practices

1. Use structured messages: Send conversation history through messages[] instead of flattening context into one prompt.
2. Choose the right variant: Use Max for complex reasoning tasks and Plus for fast, cost-effective responses. Use Web Search variants when up-to-date information is needed.
3. Consume SSE events: Append choices[0].delta.content for streaming display and treat data: [DONE] as successful completion.
4. Send only supported inputs: Qwen 3.7 models are text-only and do not support file or image attachments.