Qwen3-4B vs Apertus-8B-Instruct-2509

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

Qwen · A
Params
4.0 B
Context
40,960
30d
6.9 M
apache-2.0 · commercial OK
swiss-ai · B
Params
8.1 B
Context
65,536
30d
472 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification Qwen3-4B Apertus-8B-Instruct-2509
Parameters 4.0 B 8.1 B
Architecture Qwen3ForCausalLM ApertusForCausalLM
Context length 40,960 65,536
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages
Downloads 30d 6,941,310 471,996
Downloads all time 80.5 M 3.8 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-04-27 2025-08-13

Download trend

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

7.3 M297 K
Qwen3-4B Apertus-8B-Instruct-2509

VRAM side by side

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

Qwen3-4B · fp16 10.0 GB / 24 GB
✅ Runs comfortably
Apertus-8B-Instruct-2509 · fp16 19.4 GB / 24 GB
✅ Runs comfortably

Adjacent comparisons