gpt-oss-20b vs Gemma-4-26B-A4B-NVFP4

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

openai · A
Params
21.5 B
Context
131,072
30d
6.7 M
apache-2.0 · commercial OK
nvidia · B
Params
14.4 B
Context
30d
1.7 M
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b Gemma-4-26B-A4B-NVFP4
Parameters 21.5 B 14.4 B
Architecture GptOssForCausalLM Gemma4ForConditionalGeneration
Context length 131,072
Licence apache-2.0 apache-2.0
Commercial use Allowed Allowed
Languages
Downloads 30d 6,658,531 1,737,467
Downloads all time 98.5 M 7.8 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2026-05-01

Download trend

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

8.6 M1.2 M
gpt-oss-20b Gemma-4-26B-A4B-NVFP4

VRAM side by side

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

Gemma-4-26B-A4B-NVFP4 · fp16 23.3 GB / 24 GB
⚠️ Tight — reduce context
gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit

Adjacent comparisons