pythia-160m vs opt-350m

Specs, VRAM requirements and download trends — updated 10 November 2026.

EleutherAI · A · Open weights
Params
210 M
Context
2,048
30d
3.5 M
apache-2.0 · commercial OK
facebook · B · Open weights
Params
350 M
Context
2,048
30d
185 K

Specification comparison

Differences are highlighted; identical values are muted.

Specification pythia-160m opt-350m
Parameters 210 M 350 M
Architecture GPTNeoXForCausalLM OPTForCausalLM
Context length 2,048 2,048
Licence apache-2.0 other
Commercial use Allowed Unknown
Languages 1 1
Downloads 30d 3,495,753 184,655
Downloads all time 32.2 M 9.8 M
Quantizations on the Hub SAFETENSORS —
Gated No No
First seen on the Hub 2023-02-08 2022-05-11

Download trend

Daily snapshots, last 90 days (13 Aug – 10 Nov)

3.5 M167 K
pythia-160m opt-350m

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