Vision · mobile

Use Qwen 2.5 VL 7B with Flutter

Updated 2026-05-21 · By XALEN

How to use Qwen 2.5 VL 7B (Vision, 7B) with Flutter. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

Qwen 2.5 VL 7B

7B · 128K context · $0.01 input

Framework

Flutter

mobile · flutter pub add http

1. Install

flutter pub add http

2. Code

import 'dart:convert';
import 'package:http/http.dart' as http;

Future<String> chat(String question) async {
  final response = await http.post(
    Uri.parse('https://api.xalen.io/v1/chat/completions'),
    headers: {
      'Authorization': 'Bearer xln_test_YOUR_KEY',
      'Content-Type': 'application/json',
    },
    body: jsonEncode({
      'model': 'qwen-2-5-vl-7b',
      'messages': [{'role': 'user', 'content': question}],
    }),
  );
  final data = jsonDecode(response.body);
  return data['choices'][0]['message']['content'];
}

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Last updated: 2026-05-21