AI models
Tulu 3 405B
Parameters
405B
Published
Jan 30, 2025
Tulu 3 405B is an AI model developed by Allen Institute for AI and University of Washington (United States), first published in January 2025. It works in the language domain, on tasks such as language modeling/generation, question answering and quantitative reasoning.
Epoch AI has no training-compute estimate for this model. The model has 405,000,000,000 parameters. Training ran on NVIDIA H100 SXM5 80GB.
Access: Open weights (restricted use). Its weights are openly available. It is built on top of Llama 3.1-405B. Epoch AI rates the confidence of this record as likely.
Full record
- Organization
- Allen Institute for AI, University of Washington
- Country of organization
- United States
- Domain
- Language
- Task
- Language modeling/generation, Question answering, Quantitative reasoning
- Compute estimation method
- Hardware
- Parameters
- 405,000,000,000
- Training hardware
- NVIDIA H100 SXM5 80GB
- Model accessibility
- Open weights (restricted use)
- Open weights
- Yes
- Base model
- Llama 3.1-405B
- Epoch confidence
- Likely
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.
← All ai models