Qwen3.5-Plus
Qwen3.5-Plus is an AI model released by Qwen on Monday, Feb 16 2026, the same day as Qwen3.5. It has a 1M token context window.
Qwen3.5-Plus — frequently asked questions
- When was Qwen3.5-Plus released?
- Qwen3.5-Plus was released by Qwen on Monday, Feb 16 2026.
- Who made Qwen3.5-Plus?
- Qwen3.5-Plus 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 Qwen3.5-Plus?
- Qwen3.5-Plus has a context window of 1M. That is the maximum amount of input plus output the model can hold in a single request.
- Is Qwen3.5-Plus open source?
- No. Qwen3.5-Plus is a proprietary model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.
- What came before and after Qwen3.5-Plus?
- Qwen's previous tracked release was Qwen3.5 on Feb 16 2026. It was followed by Qwen3.6-Plus on Apr 2 2026.