opt-125m vs pythia-160m

Specs, VRAM requirements and download trends — updated 20 September 2026.

facebook · A
Params
125 M
Context
2,048
30d
7.4 M
EleutherAI · B
Params
210 M
Context
2,048
30d
3.5 M
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification opt-125m pythia-160m
Parameters 125 M 210 M
Architecture OPTForCausalLM GPTNeoXForCausalLM
Context length 2,048 2,048
Licence other apache-2.0
Commercial use Unknown Allowed
Languages 1 1
Downloads 30d 7,387,919 3,470,216
Downloads all time 213.7 M 26.2 M
Quantizations on the Hub SAFETENSORS
Gated No No
First seen on the Hub 2022-05-11 2023-02-08

Download trend

Daily snapshots, last 55 days (28 Jul – 20 Sep)

18.6 M2.3 M
opt-125m pythia-160m

VRAM side by side

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

pythia-160m · fp16 0.9 GB / 24 GB
✅ Runs comfortably

Adjacent comparisons