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We moved our code-review bot to the Qwen3 Coder 480B A35B Instruct API and the 256K context meant we stopped chunking large pull requests overnight.
Qwen3 Coder 480B A35B Instruct is a Mixture-of-Experts coding model from Alibaba Qwen with 480B total and 35B active parameters, a 256K context, tuned for agentic coding and tool use. Served on RouterBase over an OpenAI-compatible endpoint at $0.255 / 1M input and $1.105 / 1M output, 15% below list.
Input
Qwen3 Coder 480B A35B Instruct
Hi! I'm a helpful AI assistant. What can I do for you?
Qwen3 Coder 480B A35B Instruct API - 480B MoE for Agentic Coding
The Qwen3 Coder 480B A35B Instruct API runs a 480B-total, 35B-active MoE coding model with a 256K context and strong agentic tool use.
The Qwen3 Coder 480B A35B Instruct API serves Alibaba Qwen3 Coder 480B A35B Instruct, a Mixture-of-Experts model built for code: 480 billion total parameters with only 35 billion active per token, flagship coding quality without dense-model latency or cost. A 256K token context window fits entire repositories, long diffs, and tool traces in one call. You reach the Qwen3 Coder 480B A35B Instruct API through RouterBase over the OpenAI chat-completions protocol, so existing clients work unchanged and one key covers the whole catalog.
Qwen3 Coder 480B A35B Instruct was tuned for agentic coding: multi-step tool use, function calling, repository-scale generation and review, and long-horizon tasks where the model plans, edits, runs, and fixes. The Qwen3 Coder 480B A35B Instruct API bills $0.255 per 1M input tokens and $1.105 per 1M output tokens, 15% below the list rate of $0.30 in and $1.30 out, with no per-request fee. Streaming and standard OpenAI tool calls make the Qwen3 Coder 480B A35B Instruct API easy to wire into agent loops, IDE assistants, and CI pipelines.
What the Qwen3 Coder 480B A35B Instruct API gives you
Flagship coding quality, 35B active at a time.
480B MoE, 35B active
The Qwen3 Coder 480B A35B Instruct API runs a Mixture-of-Experts network with 480 billion total parameters and 35 billion active per token, so quality scales while compute stays lean.
256K context
A 256K token window lets the model hold entire repositories, long diffs, and tool traces in a single call, so you rarely have to chunk inputs to the Qwen3 Coder 480B A35B Instruct API.
Agentic coding
Tuned for multi-step tool use and long-horizon tasks, the Qwen3 Coder 480B A35B Instruct API plans, edits, runs, and fixes code the way an engineer works through a ticket.
Generation and review
Strong code generation, refactoring, and review across major programming languages make the Qwen3 Coder 480B A35B Instruct API a dependable backbone for developer tools.
Tools and JSON
The Qwen3 Coder 480B A35B Instruct API returns function calls and structured JSON in the standard OpenAI schema, ready for agents and data pipelines.
Streaming, per token
The Qwen3 Coder 480B A35B Instruct API streams tokens as they generate and bills per token at $0.255 in and $1.105 out, 15% below list, with no request fee.
Get going
First call to the Qwen3 Coder 480B A35B Instruct API in three steps
Wire it once, then stream.
Create a key
One RouterBase key reaches the Qwen3 Coder 480B A35B Instruct API and every other model in the catalog, so there is nothing provider-specific to set up.
Point your client
Send any OpenAI client to routerbase.com/v1 with model=qwen/qwen3-coder-480b-a35b-instruct and a messages array; the Qwen3 Coder 480B A35B Instruct API answers on the same chat-completions shape.
Stream and watch usage
The model streams tokens as they generate and returns token usage per response, so cost and latency stay visible on every call to the Qwen3 Coder 480B A35B Instruct API.
Pay only for what you use
RouterBase passes through partner-tier pricing. Compared against the model's official published API rate.
Pay only for what you use
RouterBase passes through partner-tier pricing. Compared against the model's official published API rate.
| Resolution | RouterBase | Official | Save |
|---|---|---|---|
| Input (per 1M) | $0.255 | −15% | |
| Output (per 1M) | $1.105 | −15% |
One run at the default settings (Input (per 1M)) costs $0.255.With $1 you can run this model approximately 3 times.
Official price = Alibaba Qwen list rate for Qwen3 Coder 480B A35B Instruct ($0.30 per 1M input, $1.30 per 1M output). RouterBase serves the Qwen3 Coder 480B A35B Instruct API at $0.255 / $1.105, 15% below list.
Teams building on the Qwen3 Coder 480B A35B Instruct API
Agentic coding behind one call.
With 35B active parameters the Qwen3 Coder 480B A35B Instruct API answers faster than the dense giants we tried, and our evals stayed flat or better.
Function calling in the standard schema meant our agent stack ran on the Qwen3 Coder 480B A35B Instruct API with zero custom parsing on day one.
At $0.255 in and $1.105 out the Qwen3 Coder 480B A35B Instruct API kept our per-token cost predictable as agent traffic climbed through the quarter.
Streaming from the Qwen3 Coder 480B A35B Instruct API is smooth, so our IDE plugin renders completions token by token without any extra buffering work.
We push refactoring plans and JSON extraction to the Qwen3 Coder 480B A35B Instruct API and the structured output comes back clean every time.
The 256K window let the Qwen3 Coder 480B A35B Instruct API read an entire service plus its tests in one pass, which sped up our migration project.
Switching from another provider to the Qwen3 Coder 480B A35B Instruct API was one string change - the OpenAI shape did not move at all.
Long-horizon agent runs are the reason we standardized on the Qwen3 Coder 480B A35B Instruct API; it plans, edits, and fixes without losing the thread.
Qwen3 Coder 480B A35B Instruct API - common questions
What to know before you route traffic to it.
The Qwen3 Coder 480B A35B Instruct API is RouterBase hosted access to Alibaba Qwen3 Coder 480B A35B Instruct, a Mixture-of-Experts coding model with 480B total and 35B active parameters, over an OpenAI-compatible endpoint.