gpt-oss-20b vs granite-4.1-30b

Specs, VRAM requirements and download trends — updated 20 September 2026.

openai · A
Params
21.5 B
Context
131,072
30d
6.7 M
apache-2.0 · commercial OK
ibm-granite · B
Params
28.9 B
Context
131,072
30d
702 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b granite-4.1-30b
Parameters 21.5 B 28.9 B
Architecture GptOssForCausalLM GraniteForCausalLM
Context length 131,072 131,072
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages
Downloads 30d 6,708,152 701,510
Downloads all time 98.3 M 849 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2026-04-06

Download trend

Daily snapshots, last 55 days (28 Jul – 20 Sep)

8.6 M177 K
gpt-oss-20b granite-4.1-30b

VRAM side by side

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

gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit
granite-4.1-30b · fp16 @ 128K ctx 133.3 GB / 24 GB
❌ Won’t fit

Adjacent comparisons