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Hybrid-Phi-Mamba-1.5B

Training compute
1.2×10²¹ FLOP
Parameters
1.5B
Published
Aug 19, 2024

Hybrid-Phi-Mamba-1.5B is an AI model developed by Carnegie Mellon University (CMU), Mohamed bin Zayed University of Artificial Intelligence (MBZUAI) and Cartesia (United States and United Arab Emirates), first published in August 2024. It works in the language domain, on tasks such as language modeling/generation.

Training it took an estimated 1.2×10²¹ FLOP of compute (estimation method: operation counting). The model has 1,500,000,000 parameters. It was trained on roughly 5B datapoints.

Access: Unreleased. Its weights are not openly released. It is built on top of Phi-1.5. Epoch AI rates the confidence of this record as confident.

Full record
Organization
Carnegie Mellon University (CMU), Mohamed bin Zayed University of Artificial Intelligence (MBZUAI), Cartesia
Country of organization
United States, United Arab Emirates
Domain
Language
Task
Language modeling/generation
Training compute
1.2×10²¹ FLOP
Compute estimation method
Operation counting
Parameters
1,500,000,000
Dataset size
5B
Model accessibility
Unreleased
Open weights
No
Base model
Phi-1.5
Epoch confidence
Confident
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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