gpt-oss-120b vs GLM-4.5-Air-FP8

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
zai-org · B
Params
110.5 B
Context
131,072
30d
168 K
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification gpt-oss-120b GLM-4.5-Air-FP8
Parameters 120.4 B 110.5 B
Architecture GptOssForCausalLM Glm4MoeForCausalLM
Context length 131,072 131,072
Licence apache-2.0 mit
Commercial use Allowed Allowed
Languages 2
Downloads 30d 4,221,708 168,319
Downloads all time 48.6 M 829 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2025-08-04 2025-07-20

Download trend

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

4.3 M156 K
gpt-oss-120b GLM-4.5-Air-FP8

VRAM side by side

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

GLM-4.5-Air-FP8 · fp16 @ 128K ctx 389.5 GB / 24 GB
❌ Won’t fit
gpt-oss-120b · fp16 @ 128K ctx 433.0 GB / 24 GB
❌ Won’t fit

Adjacent comparisons