Qwen3.5-0.8B (Reasoning)

by Alibaba Cloud / Qwen Team

Qwen3.5-0.8B (Reasoning) is a reasoning model from Alibaba Cloud / Qwen Team, released on March 2, 2026. It ranks #216 of 220 models by Intelligence Score with a score of -6.3.

Qwen3.5-0.8B is a 0.8 billion parameter vision-language model using Gated DeltaNet hybrid architecture with a 3:1 ratio of linear attention to full softmax attention. It supports 262K native context length and features both thinking and non-thinking modes.

Key specs

ProviderAlibaba Cloud / Qwen Team
Release date2026-03-02
Licenseopen source
Intelligence Score-6.3

Quick answers

Is Qwen3.5-0.8B (Reasoning) open source?

Yes. Qwen3.5-0.8B (Reasoning) is an open model released under the open source license.

When was Qwen3.5-0.8B (Reasoning) released?

Alibaba Cloud / Qwen Team released Qwen3.5-0.8B (Reasoning) on March 2, 2026.

How does Qwen3.5-0.8B (Reasoning) compare to Claude Opus 5.5 (Reasoning)?

Qwen3.5-0.8B (Reasoning) scores -6.3 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1.

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