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OLMo-1B

Training compute
1.2×10²² FLOP
Parameters
1B
Published
Feb 1, 2024

OLMo-1B is an AI model developed by Allen Institute for AI and University of Washington (United States), first published in February 2024. It works in the language domain, on tasks such as language modeling/generation and chat.

Training it took an estimated 1.2×10²² FLOP of compute (estimation method: operation counting). The model has 1,000,000,000 parameters. It was trained on roughly 2T datapoints. Training ran on AMD Radeon Instinct MI250X,NVIDIA A100.

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

Full record
Organization
Allen Institute for AI, University of Washington
Country of organization
United States
Domain
Language
Task
Language modeling/generation, Chat
Training compute
1.2×10²² FLOP
Compute estimation method
Operation counting
Parameters
1,000,000,000
Dataset size
2T
Training hardware
AMD Radeon Instinct MI250X, NVIDIA A100
Model accessibility
Open weights (unrestricted)
Open weights
Yes
Epoch confidence
Confident
More from Allen Institute for AI,University of Washington
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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