Qwen3-Coder-480B-A35B-Instruct
Enterprise-grade code generation & agentic automation — open-source, affordable & global-scale
The Qwen3-Coder-480B-A35B-Instruct is the world’s most advanced open-source coding model. With native 256 K tokens (extendable to 1 M) and mixture-of-experts efficiency, it matches or beats closed models like Claude Sonnet 4 and GPT-4o on SWE-Bench Verified — at a fraction of the cost.
To use the API for inference, please register an account first. You can view and manage your API token in the API Token dashboard.
All requests to the inference API require authentication via an API token. The token uniquely identifies your account and grants secure access to .
When calling the API, set the Authorization header to your API token, configure the request parameters as shown below, and send the request.
Why Qwen3-Coder API?
- 480 B parameters / 35 B active Mixture-of-Experts for unmatched reasoning depth.
- Agentic coding & function-calling: automate PR reviews, multi-step builds, CLI tasks.
- Up to 1 M-token context using YaRN: load entire monorepo in one call.
- Open-source Apache-2.0: audit, fine-tune or self-host — no vendor lock-in.
- < 100 ms p95 latency via global GPU edge + speculative decoding.
- Transparent pricing from $0.012 / 1K output tokens — 6x cheaper than Claude Sonnet.
| Model | Architecture | Native Context | Max Context | Open Source | Typical Price* |
| Qwen3-Coder 480B-A35B | 480 (35 active) | 262 K | 1M | $0.012 / 1K | |
| Claude Sonnet 4 | ≈ 220 | 200 K | 200 K | $0.08 / 1K | |
| GPT-4o | - | 128 K | 128 K | $0.05 / 1K | |
| Gemini Pro 2.5 | - | 128 K | 128 K | $0.03 / 1K |
*Prices as of July 2025.
Popular Use Cases of Qwen3-Coder API
Upload an entire micro-service repo (≤ 500 K tokens) and ask Qwen3-Coder to modernise it to TypeScript.
Generate edge-case tests and inline docstrings as part of your CI pipeline.
Combine Qwen3-Coder with shell-tool calling to spin up containers, run benchmarks and open pull requests — hands-free.
Benchmark Highlights (July 2025)
- SWE-Bench Verified: *81.6 %*, on par with Claude Sonnet 4 and GPT-4o.
- CodeForces ELO: +267 above baseline open-source models.
- Tool-Use (BrowserBench-Tools): 94.1 % task completion.
Frequently Asked Questions of Qwen3-Coder API
In Qwen/Qwen3-Coder-480B-A35B-Instruct, “A35B” indicates a Mixture-of-Experts (MoE) code model with ~35B active parameters per token (out of ~480B total). This design gives the Qwen3-Coder API strongrepo-level code understanding and multi-file refactoring while keeping inference efficient.
Yes. Qwen3-Coder 480B is released under Apache-2.0, making it a leadingopen-source code LLM and GPT-4-class coding assistant alternative. You can self-host, fine-tune, and integrate with your toolchain.
The Qwen3-Coder API is built for code generation, repo-level search & modify,test generation, bug fixing, migration & refactoring, and design-to-code.
Broad coverage across Python, TypeScript/JavaScript, Java, Go, C/C++, C#, Rust, PHP, Ruby, Kotlin, Swift, plus SQL, front-end frameworks, build files, and infra as code. Common searches: best LLM for Python code, TypeScript code generator, Rust AI pair programmer.
Yes. The native 256K context handles long files and cross-file dependencies. For huge monorepos, combine with retrieval-augmented coding (RAC) and chunking. Many users discover us via LLM for large repositories or AI codebase refactor.
The Qwen3-Coder model family is competitive on public suites (e.g., HumanEval(+), MBPP, LiveCodeBench) while remaining open and self-hostable. Popular searches include best open-source coding model and Qwen3-Coder vs GPT-4 Code.
Yes. Use the Qwen3-Coder API with VS Code / JetBrains plugins, cline, and CI workflows for PR summaries, static analysis, and auto-fix.
The MoE design keeps per-token compute near ~35B active params. The API supports server-side streaming, low-latency code completion, and batch generation for agents.
The Qwen3-Coder API offers no-training-on-your-data options, data-retention controls, and on-prem deployment for sensitive code. Many users search secure coding LLM orenterprise code assistant.