# Qwen2

Qwen2 is an AI model released by Qwen on Jun 6 2024. It has 72B parameters, a 128k context window and open weight.

## Facts

| Field | Value |
| --- | --- |
| Model | Qwen2 |
| Developer | Qwen |
| Release date | Thursday, Jun 6 2024 |
| Licensing | Open Weight |
| Parameters | 72B |
| Context window | 128k |

## Questions and answers

### When was Qwen2 released?

Qwen2 was released by Qwen on Thursday, Jun 6 2024.

### Who made Qwen2?

Qwen2 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 proprietary Max and Plus tier sold through Alibaba Cloud.

### What is the context window of Qwen2?

Qwen2 has a context window of 128k. That is the maximum amount of input plus output the model can hold in a single request.

### How many parameters does Qwen2 have?

Qwen2 is reported at 72B parameters.

### Is Qwen2 open source?

Partly. Qwen2 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 Qwen2?

Qwen's previous tracked release was Qwen1.5 on Feb 4 2024, 123 days earlier. It was followed by Qwen2.5 on Sep 19 2024.


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Canonical page: https://aireleasetracker.com/model/qwen/qwen2
Full dataset: https://aireleasetracker.com/llms-full.txt · JSON: https://aireleasetracker.com/models.json
Source: AI Release Tracker (https://aireleasetracker.com). Benchmark scores are the figures published by the releasing lab at launch.