gpt-oss-20b vs Qwen3-30B-A3B

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

openai · A
Params
21.5 B
Context
131,072
30d
8.6 M
apache-2.0 · commercial OK
Qwen · B
Params
30.5 B
Context
40,960
30d
3.1 M
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b Qwen3-30B-A3B
Parameters 21.5 B 30.5 B
Architecture GptOssForCausalLM Qwen3MoeForCausalLM
Context length 131,072 40,960
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages
Downloads 30d 8,616,555 3,060,898
Downloads all time 87.8 M 17.9 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2025-04-27

Download trend

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

8.6 M3.1 M
gpt-oss-20b Qwen3-30B-A3B

VRAM side by side

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

Qwen3-30B-A3B · fp16 72.3 GB / 24 GB
❌ Won’t fit
gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit

Adjacent comparisons