Epoch AI
@epochai.bsky.social
780 followers
20 following
790 posts
We are a research institute investigating the trajectory of AI for the benefit of society.
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Epoch AI
@epochai.bsky.social
· 10m
Epoch AI
@epochai.bsky.social
· 11m
Private-sector companies own a dominant share of GPU clusters
The private sector’s share of global AI computing capacity has grown from 40% in 2019 to 80% in 2025. Though many leading early supercomputers such as Summit were run by government and academic labs, the total installed computing power of public-sector clusters has only increased at 1.8x per year, rapidly outpaced by private-sector clusters, whose total computing power has grown at 2.7x per year. The rising economic importance of AI has spurred the private sector to build more and faster clusters for training and inference. As of May 2025, the largest known public AI supercomputer, Lawrence Livermore’s El Capitan, achieves less than a quarter of the computational performance of the largest known industry cluster, xAI’s Colossus.
epoch.ai
Epoch AI
@epochai.bsky.social
· 11m
Epoch AI
@epochai.bsky.social
· 19h
GPT-5 compute estimate (public)
GPT-5 compute estimate Guesstimate model link: https://www.getguesstimate.com/models/26145 Pretraining Training compute of LLMs during pretraining is closely approximated by 6 * number of active parameters * number of tokens the model was trained on. Active parameters GPT-5 is likely a “mid-si...
docs.google.com
Epoch AI
@epochai.bsky.social
· 19h
Epoch AI
@epochai.bsky.social
· 19h
Epoch AI
@epochai.bsky.social
· 19h
Epoch AI
@epochai.bsky.social
· 19h
Epoch AI
@epochai.bsky.social
· 19h
Epoch AI
@epochai.bsky.social
· 19h
Epoch AI
@epochai.bsky.social
· 19h
Epoch AI
@epochai.bsky.social
· 20h
Epoch AI
@epochai.bsky.social
· 20h