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Olmo 3.1 32B Think

Parameters
32B
Published
Nov 20, 2025

Olmo 3.1 32B Think is an AI model developed by Allen Institute for AI, University of Washington, Carnegie Mellon University (CMU), Stanford University, Mila - Quebec AI (originally Montreal Institute for Learning Algorithms), University of Montreal / Université de Montréal and 3 more (United States and Canada), first published in November 2025. It works in the language domain, on tasks such as language modeling/generation, chat, code generation and 2 more.

Epoch AI has no training-compute estimate for this model. The model has 32,000,000,000 parameters. Training ran on 1,024 NVIDIA H100 SXM5 80GB.

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

Full record
Organization
Allen Institute for AI, University of Washington, Carnegie Mellon University (CMU), Stanford University, Mila - Quebec AI (originally Montreal Institute for Learning Algorithms), University of Montreal / Université de Montréal, Princeton University, Massachusetts Institute of Technology (MIT), University of Maryland
Country of organization
United States, Canada
Domain
Language
Task
Language modeling/generation, Chat, Code generation, Mathematical reasoning, Tool use
Parameters
32,000,000,000
Training hardware
NVIDIA H100 SXM5 80GB
Chips used
1,024
Training power draw
1.4 MW
Model accessibility
Open weights (unrestricted)
Open weights
Yes
Epoch confidence
Likely
More from Allen Institute for AI,University of Washington,Carnegie Mellon University (CMU),Stanford University,Mila - Quebec AI (originally Montreal Institute for Learning Algorithms),University of Montreal / Université de Montréal,Princeton University,Massachusetts Institute of Technology (MIT),University of Maryland
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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