The AI Museum
AI Analytics1,072 recordsRecounted 23 September 2026

Frontier models from OpenAI

14

Models

1 organisations

0%

Open weights

0 open, 13 closed

14

Frontier

By Epoch's flag

175B

Largest traceable

GPT-3 175B (davinci)

2017–2025

Span

2 with a traceable size

Records

14
Frontier models from OpenAI, newest first. Each row links to the source Epoch AI records for it.
ModelOrganisationReleasedParametersWeights
GPT-4o (Mar 2025)OpenAI2025-03Closed
GPT-4.5OpenAI2025-02Closed
GPT-4o (Jan 2025)OpenAI2025-01Closed
GPT-4o (Nov 2024)OpenAI2024-11Closed
GPT-4o (Aug 2024)OpenAI2024-08Closed
GPT-4oOpenAI2024-05Closed
GPT-4 Turbo (Apr 2024)OpenAI2024-04Closed
GPT-4 Turbo (Nov 2023)OpenAI2023-11Closed
GPT-4 (Jun 2023)OpenAI2023-061.8T *Closed
GPT-4 (Mar 2023)OpenAI2023-031.8T *Closed
GPT-3.5 (davinci-002)OpenAI2022-03Closed
GPT-3 175B (davinci)OpenAI2020-05175BClosed
OpenAI FiveOpenAI2019-12159MClosed
OpenAI TI7 DOTA 1v1OpenAI2017-08Not 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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