Qwen2.5-1.5B-Instruct vs Qwen2.5-3B

Specs, VRAM requirements and download trends — updated 10 November 2026.

Qwen · A · Open weights
Params
1.5 B
Context
32,768
30d
5.0 M
apache-2.0 · commercial OK
Qwen · B · Open weights
Params
3.1 B
Context
32,768
30d
203 K

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen2.5-1.5B-Instruct Qwen2.5-3B
Parameters 1.5 B 3.1 B
Architecture Qwen2ForCausalLM Qwen2ForCausalLM
Context length 32,768 32,768
Licence apache-2.0 other
Commercial use Allowed Unknown
Languages 1 1
Downloads 30d 5,017,129 202,503
Downloads all time 227.9 M 7.6 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2024-09-17 2024-09-15

Download trend

Daily snapshots, last 90 days (13 Aug – 10 Nov)

12.1 M151 K
Qwen2.5-1.5B-Instruct Qwen2.5-3B

VRAM side by side

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

Qwen2.5-1.5B-Instruct · fp16 4.1 GB / 24 GB
✅ Runs comfortably
Qwen2.5-3B · fp16 7.8 GB / 24 GB
✅ Runs comfortably

Adjacent comparisons