The AI Museum
AI Analytics1,072 recordsRecounted 23 September 2026

Closed-weight models in 2015

11

Models

10 organisations

0%

Open weights

0 open, 11 closed

2

Frontier

By Epoch's flag

138M

Largest traceable

VGG-Face

2015

Span

7 with a traceable size

Releases

by month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec

Records

11
Closed-weight models in 2015, newest first. Each row links to the source Epoch AI records for it.
ModelOrganisationReleasedParametersWeights
Variational (untied weights, MC) LSTM (Large)University of Cambridge2015-1266MClosed
3DDFAChinese Academy of Sciences2015-115MClosed
AlphaGo FanDeepMind2015-108M *Closed
SAF R-CNNBeijing Institute of Technology2015-10138M *Closed
DCNNUniversity of Maryland2015-085MClosed
CompACT-DeepUniversity of California San Diego2015-07Closed
Deep CNN + COTSIEEE2015-075MClosed
TC-DNN-BLSTM-DNNCarnegie Mellon University (CMU)2015-0418MClosed
genCNN + dyn evalChinese Academy of Sciences2015-038M *Closed
TRPOUniversity of California (UC) Berkeley2015-0233,500Closed
VGG-FaceUniversity of Oxford2015-01138MClosed

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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