gpt-oss-20b vs GLM-4.7-Flash-MLX-6bit

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
lmstudio-community · B
Params
29.9 B
Context
202,752
30d
203 K
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-20b GLM-4.7-Flash-MLX-6bit
Parameters 21.5 B 29.9 B
Architecture GptOssForCausalLM Glm4MoeLiteForCausalLM
Context length 131,072 202,752
Licence apache-2.0 mit
Commercial use Allowed Allowed
Languages 2
Downloads 30d 8,616,555 202,975
Downloads all time 87.8 M 3.0 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2026-01-19

Download trend

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

8.6 M202 K
gpt-oss-20b GLM-4.7-Flash-MLX-6bit

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-MLX-6bit · fp16 @ 198K ctx 138.4 GB / 24 GB
❌ Won’t fit

Adjacent comparisons