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

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

openai · A
Params
120.4 B
Context
131,072
30d
4.2 M
apache-2.0 · commercial OK
deepseek-ai · B
Params
158.1 B
Context
1,048,576
30d
2.7 M
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-120b DeepSeek-V4-Flash
Parameters 120.4 B 158.1 B
Architecture GptOssForCausalLM DeepseekV4ForCausalLM
Context length 131,072 1,048,576
Licence apache-2.0 mit
Commercial use Allowed Allowed
Languages
Downloads 30d 4,221,708 2,737,621
Downloads all time 48.6 M 9.4 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2026-04-22

Download trend

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

4.3 M2.7 M
gpt-oss-120b DeepSeek-V4-Flash

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 · fp16 @ 1024K ctx 3,211.0 GB / 24 GB
❌ Won’t fit

Adjacent comparisons