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Palmyra Large 20B

Training compute
9.6×10²² FLOP
Parameters
20B
Published
Mar 1, 2023

Palmyra Large 20B is an AI model developed by Writer (United States), first published in March 2023. It works in the language domain, on tasks such as language modeling.

Training it took an estimated 9.6×10²² FLOP of compute (estimation method: operation counting). The model has 20,000,000,000 parameters. It was trained on roughly 800B datapoints.

Access: Open weights (unrestricted). Its weights are openly available. Epoch AI rates the confidence of this record as speculative.

Full record
Organization
Writer
Country of organization
United States
Domain
Language
Task
Language modeling
Training compute
9.6×10²² FLOP
Compute estimation method
Operation counting
Parameters
20,000,000,000
Dataset size
800B
Model accessibility
Open weights (unrestricted)
Open weights
Yes
Epoch confidence
Speculative
More from Writer
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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