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FourCastNet

Training compute
3.5×10²⁰ FLOP
Published
Feb 22, 2022

FourCastNet is an AI model developed by NVIDIA, NERSC, Lawrence Berkeley National Laboratory, University of Michigan, Rice University, California Institute of Technology and Purdue University (United States), first published in February 2022. It works in the earth science domain, on tasks such as weather forecasting.

Training it took an estimated 3.5×10²⁰ FLOP of compute (estimation method: hardware). Training ran on 64 NVIDIA A100 for about 16 hours.

Access: Unreleased. Its weights are not openly released. Epoch AI rates the confidence of this record as confident.

Full record
Organization
NVIDIA, NERSC, Lawrence Berkeley National Laboratory, University of Michigan, Rice University, California Institute of Technology, Purdue University
Country of organization
United States
Domain
Earth science
Task
Weather forecasting
Training compute
3.5×10²⁰ FLOP
Compute estimation method
Hardware
Training hardware
NVIDIA A100
Chips used
64
Training time
16 h
Training power draw
51.5 kW
Model accessibility
Unreleased
Open weights
No
Epoch confidence
Confident
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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