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Hyena-2 355M

Training compute
3.9×10¹⁹ FLOP
Parameters
355M
Published
Feb 21, 2023

Hyena-2 355M is an AI model developed by Stanford University, University of Montreal / Université de Montréal and Mila - Quebec AI (originally Montreal Institute for Learning Algorithms) (United States and Canada), first published in February 2023. It works in the language domain, on tasks such as language modeling/generation.

Training it took an estimated 3.9×10¹⁹ FLOP of compute (estimation method: reported,operation counting). The model has 355,000,000 parameters. It was trained on roughly 15B datapoints. Training ran on 8 NVIDIA A100 SXM4 80 GB.

Access: Unreleased. Its weights are not openly released. The reference paper has 497 citations. Epoch AI rates the confidence of this record as confident.

Full record
Organization
Stanford University, University of Montreal / Université de Montréal, Mila - Quebec AI (originally Montreal Institute for Learning Algorithms)
Country of organization
United States, Canada
Domain
Language
Task
Language modeling/generation
Training compute
3.9×10¹⁹ FLOP
Compute estimation method
Reported, Operation counting
Parameters
355,000,000
Dataset size
15B
Training hardware
NVIDIA A100 SXM4 80 GB
Chips used
8
Training power draw
6.4 kW
Model accessibility
Unreleased
Open weights
No
Citations
497
Epoch confidence
Confident
More from Stanford University,University of Montreal / Université de Montréal,Mila - Quebec AI (originally Montreal Institute for Learning Algorithms)
SourceEpoch AI, 'AI Models'. Published online at epoch.ai. Retrieved 2026-07-29 from https://epoch.ai/data/ai-models. Licensed under CC BY 4.0.
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