gpt-oss-20b vs DeepSeek-V2-Lite-Chat

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
deepseek-ai · B
Params
15.7 B
Context
163,840
30d
1.4 M

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b DeepSeek-V2-Lite-Chat
Parameters 21.5 B 15.7 B
Architecture GptOssForCausalLM DeepseekV2ForCausalLM
Context length 131,072 163,840
Licence apache-2.0 other
Commercial use Allowed Unknown
Languages
Downloads 30d 8,616,555 1,354,449
Downloads all time 87.8 M 7.5 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2024-05-15

Download trend

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

8.6 M1.2 M
gpt-oss-20b DeepSeek-V2-Lite-Chat

VRAM side by side

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

DeepSeek-V2-Lite-Chat · fp16 @ 160K ctx 82.2 GB / 24 GB
❌ Won’t fit
gpt-oss-20b · fp16 @ 128K ctx 82.4 GB / 24 GB
❌ Won’t fit

Adjacent comparisons