The AI Museum
AI Analytics1,072 recordsRecounted 23 September 2026

Unrecorded-weight frontier models from United States of America

37

Models

20 organisations

Open weights

0 open, 0 closed

37

Frontier

By Epoch's flag

2B

Largest traceable

Seq2Seq LSTM

1950–2017

Span

15 with a traceable size

Records

37
Unrecorded-weight frontier models from United States of America, newest first. Each row links to the source Epoch AI records for it.
ModelOrganisationReleasedParametersWeights
OpenAI TI7 DOTA 1v1OpenAI2017-08Not recorded
JFTGoogle Research2017-0745MNot recorded
NASv3 (CIFAR-10)Google Brain2016-1137M *Not recorded
XceptionGoogle2016-1023MNot recorded
Inception v3Google2015-1224M *Not recorded
MSRA (C, PReLU)Microsoft Research2015-0287MNot recorded
SNM-skipGoogle2014-1262B *Not recorded
Seq2Seq LSTMGoogle2014-092BNot recorded
SPPNetMicrosoft2014-06Not recorded
Visualizing CNNsNew York University (NYU)2013-11Not recorded
DistBelief NNLMGoogle2013-01Not recorded
Unsupervised High-level Feature LearnerGoogle2012-071B *Not recorded
RNN LMJohns Hopkins University2010-0970M *Not recorded
KN-LMGoogle2007-0621B *Not recorded
SB-LMGoogle2007-06300B *Not recorded
Decision tree (classification)Mitsubishi Electric Research Labs2001-1212,000 *Not recorded
LeNet-5AT&T1998-1160,000Not recorded
Siamese-TDNNBell Laboratories1993-08744 *Not recorded
TD-GammonIBM1992-0525,000 *Not recorded
NETtalk reimplementationOregon State University1990-0627,480Not recorded
Zip CNNAT&T1989-129,760Not recorded
Handwritten digit recognition networkAT&T1989-112,578Not recorded
NetTalk (dictionary)Princeton University1987-0618,629Not recorded
NetTalk (transcription)Princeton University1987-0618,629Not recorded
Translation-invariant MLPCarnegie Mellon University (CMU)1987-06816Not recorded
MLP with back-propagationUniversity of California San Diego1986-10720Not recorded
Distributed representation NNCarnegie Mellon University (CMU)1986-08432Not recorded
ASE+ACEUniversity of Massachusetts Amherst1983-09324 *Not recorded
LTE speaker verification systemIBM1966-112,061 *Not recorded
Print Recognition LogicIBM1963-01Not recorded
Linear Decision FunctionsBell Laboratories1962-06Not recorded
ADALINEStanford University1960-0617Not recorded
Perceptron (1960)Cornell Aeronautical Laboratory1960-031,000 *Not recorded
Samuel Neural CheckersIBM1959-0716 *Not recorded
Pandemonium (morse)Massachusetts Institute of Technology (MIT)1959-02Not recorded
Perceptron Mark ICornell Aeronautical Laboratory1957-011,000 *Not recorded
TheseusBell Laboratories1950-0740Not recorded

An asterisk marks a parameter figure the source does not consider traceable to the people who built the model. That judgement is the source’s and it has false negatives: Kimi K3 is marked speculative at 2.8T while Moonshot’s own model card states the figure. Why that distinction carries the whole exhibit.

Counts are of models Epoch AI records as notable, not of every model released. The most recent month is always incomplete, because a model enters the dataset when it is reviewed rather than when it ships.

Epoch AI, 'Data on AI Models'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/data/ai-models-documentation' Used under CC BY 4.0.

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