Qwen2.5-1.5B-Instruct vs Qwen3-4B-Instruct-2507-NVFP4

Specs, VRAM requirements and download trends — updated 6 August 2026.

Qwen · A
Params
1.5 B
Context
32,768
30d
14.0 M
apache-2.0 · commercial OK
llmat · B
Params
2.8 B
Context
262,144
30d
161 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen2.5-1.5B-Instruct Qwen3-4B-Instruct-2507-NVFP4
Parameters 1.5 B 2.8 B
Architecture Qwen2ForCausalLM Qwen3ForCausalLM
Context length 32,768 262,144
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages 1 1
Downloads 30d 13,977,170 160,914
Downloads all time 206.3 M 269 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2024-09-17 2025-08-27

Download trend

Daily snapshots, last 10 days (28 Jul – 6 Aug)

14.2 M161 K
Qwen2.5-1.5B-Instruct Qwen3-4B-Instruct-2507-NVFP4

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
Qwen3-4B-Instruct-2507-NVFP4 · fp16 @ 256K ctx 18.0 GB / 24 GB
✅ Runs comfortably

Adjacent comparisons