gpt-oss-20b vs GLM-4.7-Flash

Specs, VRAM requirements and download trends — updated 14 September 2026.

openai · A
Params
21.5 B
Context
131,072
30d
6.7 M
apache-2.0 · commercial OK
unsloth · B
Params
31.2 B
Context
202,752
30d
199 K
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b GLM-4.7-Flash
Parameters 21.5 B 31.2 B
Architecture GptOssForCausalLM Glm4MoeLiteForCausalLM
Context length 131,072 202,752
Licence apache-2.0 mit
Commercial use Allowed Allowed
Languages 2
Downloads 30d 6,658,531 198,876
Downloads all time 98.5 M 2.3 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2026-01-20

Download trend

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

8.6 M199 K
gpt-oss-20b GLM-4.7-Flash

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
GLM-4.7-Flash · fp16 @ 198K ctx 185.1 GB / 24 GB
❌ Won’t fit

Adjacent comparisons