Alibaba (Qwen)

Qwen3.5 35B-A3B Base

Generally availableOpen weights66K context

Summary

Qwen3.5 35B-A3B Base is an open-weight language model from Alibaba (Qwen), released on 24 Feb 2026. It accepts text and generates text, with a 66K-token context window and up to 66K output tokens per response.

Pre-trained Qwen3.5 base checkpoint for fine-tuning and research, without instruction tuning

Last verified 21 Oct 2026. Every figure on this page links to its source.

Specifications

DeveloperAlibaba (Qwen)
Release date24 Feb 2026 [models.dev]
StatusGenerally available [models.dev]
WeightsOpen weights [models.dev]
Context window66K (65,536 tokens) [models.dev]
Max output66K tokens [models.dev]
InputText [models.dev]
OutputText [models.dev]
Reasoning modeNo [models.dev]
Tool callingNo [models.dev]

Qwen3.5 35B-A3B Base 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 35B-A3B Base?

Qwen3.5 35B-A3B Base has a context window of 65,536 tokens (66K) and can generate up to 65,536 tokens in a single response, according to models.dev.

Is Qwen3.5 35B-A3B Base open source?

Qwen3.5 35B-A3B Base is an open-weight model. Check the license terms before commercial use.

When was Qwen3.5 35B-A3B Base released?

Alibaba (Qwen) released Qwen3.5 35B-A3B Base on 24 Feb 2026, according to models.dev.

Change history

  • Added to the directory

Sources