# Qwen3-Coder

Qwen3-Coder is an AI model released by Qwen on Jul 22 2025. It has 480B parameters, a 256k context window and open weight. Tracked results include 20% on BullshitBench v2.

## Facts

| Field | Value |
| --- | --- |
| Model | Qwen3-Coder |
| Developer | Qwen |
| Release date | Tuesday, Jul 22 2025 |
| Licensing | Open Weight |
| Parameters | 480B |
| Context window | 256k |

## Tracked benchmark scores

| Benchmark | Score | Source | What it measures |
| --- | --- | --- | --- |
| BullshitBench v2 | 20% | [BullshitBench](https://github.com/petergpt/bullshit-benchmark) | Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. |

## About Qwen3-Coder

Qwen3-Coder was introduced on July 22, 2025 with the 480B-A35B-Instruct checkpoint: a mixture-of-experts coding model with 480 billion total parameters and 35 billion active per token. It had a native 256K context window, with extension to about one million tokens requiring the documented configuration.

Qwen released it alongside Qwen Code, a command-line agent adapted from Gemini CLI. The model targeted agentic programming, including tool calls and multi-step repository work. The model supplied generated instructions and code, while the surrounding agent software provided the tools and execution environment.

## Questions and answers

### When was Qwen3-Coder released?

Qwen3-Coder was released by Qwen on Tuesday, Jul 22 2025.

### Who made Qwen3-Coder?

Qwen3-Coder was built by Qwen. Alibaba's AI lab, building the Qwen family. The most prolific publisher of open-weight models of any major lab, alongside a closed Max and Plus tier sold through Alibaba Cloud.

### What benchmark scores did Qwen3-Coder get?

Qwen3-Coder reports 1 tracked benchmark score — BullshitBench v2: 20%. Tracked scores may come from lab reports or independent benchmarks; source details accompany the benchmark data.

### What is the context window of Qwen3-Coder?

Qwen3-Coder has a context window of 256k. Providers may specify separate input and output token limits.

### How many parameters does Qwen3-Coder have?

Qwen3-Coder is reported at 480B parameters.

### Is Qwen3-Coder open source?

Partly. Qwen3-Coder is an open-weight model: the trained weights are free to download and run locally or on your own infrastructure, but the training data and code are not fully released and the license may restrict some commercial uses. It is not open source in the strict sense.

### What came before and after Qwen3-Coder?

Qwen's previous tracked release was Qwen3 on Apr 29 2025, 84 days earlier. It was followed by Qwen3-Next on Sep 11 2025.


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Canonical page: https://aireleasetracker.com/model/qwen/qwen3-coder
Site index: https://aireleasetracker.com/llms.txt
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.