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OpenAI Five

Training compute
6.7×10²² FLOP
Parameters
159M
Published
Dec 13, 2019

OpenAI Five is an AI model developed by OpenAI (United States), first published in December 2019. It works in the games domain, on tasks such as dota 2. It counts among the frontier models: the systems trained with the most compute of their moment.

Training it took an estimated 6.7×10²² FLOP of compute (estimation method: reported). The model has 159,000,000 parameters. It was trained on roughly 454.2B datapoints. Training ran on 1,536 NVIDIA P100 for about 7.1K hours. The compute alone is estimated at $4M in 2023 dollars.

Access: Unreleased. Its weights are not openly released. The reference paper has 2,137 citations. Epoch AI rates the confidence of this record as confident.

Full record
Organization
OpenAI
Country of organization
United States
Domain
Games
Task
Dota 2
Training compute
6.7×10²² FLOP
Compute estimation method
Reported
Parameters
159,000,000
Dataset size
454.2B
Training hardware
NVIDIA P100
Chips used
1,536
Training time
7,104 h
Chip-hours
10.9M
Training power draw
786.4 kW
Training cost (2023 USD)
$4M
Model accessibility
Unreleased
Open weights
No
Citations
2,137
Epoch confidence
Confident
More from OpenAI
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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