Qwen2.5-3B-Instruct vs Qwen3-4B-Instruct-2507

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

Qwen · A · Open weights
Params
3.1 B
Context
32,768
30d
2.6 M
Qwen · B · Open weights
Params
4.0 B
Context
262,144
30d
2.6 M
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen2.5-3B-Instruct Qwen3-4B-Instruct-2507
Parameters 3.1 B 4.0 B
Architecture Qwen2ForCausalLM Qwen3ForCausalLM
Context length 32,768 262,144
Licence other apache-2.0
Commercial use Unknown Allowed
Languages 1 —
Downloads 30d 2,587,484 2,557,680
Downloads all time 125.6 M 66.6 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2024-09-17 2025-08-05

Download trend

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

7.6 M2.5 M
Qwen2.5-3B-Instruct Qwen3-4B-Instruct-2507

VRAM side by side

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

Qwen2.5-3B-Instruct · fp16 7.8 GB / 24 GB
✅ Runs comfortably
Qwen3-4B-Instruct-2507 · fp16 @ 256K ctx 28.6 GB / 24 GB
❌ Won’t fit

Adjacent comparisons