Qwen3.5-0.8B vs Qwen3.5-2B

Specs, VRAM requirements and download trends — updated 21 September 2026.

Qwen · A
Params
870 M
Context
30d
2.4 M
apache-2.0 · commercial OK
Qwen · B
Params
2.3 B
Context
30d
4.8 M
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen3.5-0.8B Qwen3.5-2B
Parameters 870 M 2.3 B
Architecture Qwen3_5ForConditionalGeneration Qwen3_5ForConditionalGeneration
Context length
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages
Downloads 30d 2,376,732 4,770,035
Downloads all time 18.2 M 16.9 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2026-02-28 2026-02-28

Download trend

Daily snapshots, last 56 days (28 Jul – 21 Sep)

4.8 M2.3 M
Qwen3.5-0.8B Qwen3.5-2B

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

Qwen3.5-0.8B · fp16 2.6 GB / 24 GB
✅ Runs comfortably
Qwen3.5-2B · fp16 5.8 GB / 24 GB
✅ Runs comfortably

Adjacent comparisons