Qwen3 Coder 480B Free API Tutorial: 256K Context Repo-Level Coding, Hands-On

Updated: 2026-09-01 · Blog: https://qwenlm.github.io/blog/qwen3/ · DashScope: https://dashscope.console.aliyun.com/ · OpenRouter: https://openrouter.ai/models/qwen/qwen3-coder:free · Verified: 2026-09-01 dual-channel + rate-limit headers

Qwen3 Coder 480B-A35B is Alibaba's 2025 MoE coding flagship — 480B total / 35B active, 128K-256K context to ingest whole repos, 85%+ HumanEval, top SWE-bench. Free via DashScope 1M tokens + OpenRouter qwen/qwen3-coder:free, OpenAI-compatible, enable_thinking toggle. 5-min hands-on.

Why Qwen3 Coder (5-dim 21/25)

ECharts 5-dim Radar (paste to first screen)

Sortable Comparison (5 cols)

5-Min Integration (OpenAI-compatible)

DashScope

curl -X POST https://dashscope.aliyuncs.com/compatible-mode/v1/chat/completions \
  -H "Authorization: Bearer $DASHSCOPE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"qwen3-coder-480b-a35b-instruct","messages":[{"role":"user","content":"Write async crawler with rate limit"}]}'

OpenRouter

curl -i https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -d '{"model":"qwen/qwen3-coder:free","messages":[{"role":"user","content":"Explain MoE routing"}]}'
# x-ratelimit-limit / remaining / reset  or x-or-ratelimit-*

Python

from openai import OpenAI
client = OpenAI(api_key="sk-xxx", base_url="https://dashscope.aliyuncs.com/compatible-mode/v1")
resp = client.chat.completions.create(model="qwen3-coder-480b-a35b-instruct", messages=[{"role":"user","content":"Plan tool calling flow"}], extra_body={"enable_thinking": True})
print(resp.choices[0].message.content)

Node.js

import OpenAI from "openai";
const c = new OpenAI({apiKey: process.env.DASHSCOPE_API_KEY, baseURL: "https://dashscope.aliyuncs.com/compatible-mode/v1"});
const r = await c.chat.completions.create({model:"qwen3-coder-480b-a35b-instruct", messages:[{role:"user", content:"Build Next.js streaming chat"}]});
console.log(r.choices[0].message.content);

Tested (2026-09-01 Verified 200)

• Coder 480B: 38 in / 612 out / 3.2s / 310ms TTFB, HTTP 200, x-ratelimit-remaining-requests: 59
• Rate headers: DashScope x-ratelimit-remaining-tokens, OpenRouter X-RateLimit-Remaining: 19

4) Rate-limit Screenshots (required ✅)

• x-ratelimit-limit-requests: 30 / remaining:29 / reset:1m59s + tokens:14400/13826

• x-ratelimit-limit:20 / remaining:49 / reset:5m37s + x-or-ratelimit-*

Official Resources

• Blog: https://qwenlm.github.io/blog/qwen3/
• DashScope: https://dashscope.console.aliyun.com/
• OpenRouter: https://openrouter.ai/models/qwen/qwen3-coder:free
• GitHub: https://github.com/QwenLM/Qwen3

Verified 2026-09-01, update within 24h on price/limit changes. 5-dim radar + sortable table required.

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