gpt-oss-120b vs DeepSeek-V4-Flash-NVFP4

Specs, VRAM requirements and download trends — updated 17 September 2026.

openai · A
Params
120.4 B
Context
131,072
30d
5.0 M
apache-2.0 · commercial OK
nvidia · B
Params
166.7 B
Context
1,048,576
30d
203 K
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-120b DeepSeek-V4-Flash-NVFP4
Parameters 120.4 B 166.7 B
Architecture GptOssForCausalLM DeepseekV4ForCausalLM
Context length 131,072 1,048,576
Licence apache-2.0 mit
Commercial use Allowed Allowed
Languages
Downloads 30d 5,008,854 202,991
Downloads all time 57.0 M 1.9 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2026-05-18

Download trend

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

5.5 M203 K
gpt-oss-120b DeepSeek-V4-Flash-NVFP4

VRAM side by side

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

gpt-oss-120b · fp16 @ 128K ctx 433.0 GB / 24 GB
❌ Won’t fit
DeepSeek-V4-Flash-NVFP4 · fp16 @ 1024K ctx 3,386.8 GB / 24 GB
❌ Won’t fit

Adjacent comparisons