Qwen3.5 2B
Generally availableOpen weights33K context
Summary
Qwen3.5 2B is an open-weight language model from Alibaba (Qwen), released on 1 Nov 2025. It accepts text and generates text, with a 33K-token context window and up to 8K output tokens per response.
Qwen instruction model for multilingual chat and tool use
Last verified 21 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | Alibaba (Qwen) |
|---|---|
| Release date | 1 Nov 2025 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Open weights [models.dev] |
| Context window | 33K (32,768 tokens) [models.dev] |
| Max output | 8K tokens [models.dev] |
| Input | Text [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | No [models.dev] |
| Tool calling | Yes [models.dev] |
Qwen3.5 2B API pricing by provider
USD per million tokens. Sorted by input price.
We do not currently track a paid API listing for this model.
Frequently asked questions
What is the context window of Qwen3.5 2B?
Qwen3.5 2B has a context window of 32,768 tokens (33K) and can generate up to 8,192 tokens in a single response, according to models.dev.
Is Qwen3.5 2B open source?
Qwen3.5 2B is an open-weight model. Check the license terms before commercial use.
When was Qwen3.5 2B released?
Alibaba (Qwen) released Qwen3.5 2B on 1 Nov 2025, according to models.dev.
Change history
- Added to the directory