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Transformer-XL + AutoDropout (PTB)

Training compute
5.8×10¹⁶ FLOP
Parameters
24M
Published
Jan 5, 2021

Transformer-XL + AutoDropout (PTB) is an AI model developed by Google Research (United States), first published in January 2021. It works in the language domain, on tasks such as language modeling.

Training it took an estimated 5.8×10¹⁶ FLOP of compute. The model has 24,000,000 parameters. Training ran on 4 Google TPU v2 for about 0.66 hours.

Access: Unreleased. Its weights are not openly released. The reference paper has 63 citations. Epoch AI rates the confidence of this record as confident.

Full record
Organization
Google Research
Country of organization
United States
Domain
Language
Task
Language modeling
Training compute
5.8×10¹⁶ FLOP
Parameters
24,000,000
Training hardware
Google TPU v2
Chips used
4
Training time
1 h
Training power draw
2.3 kW
Model accessibility
Unreleased
Open weights
No
Citations
63
Epoch confidence
Confident
More from Google Research
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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