Models

Models from the labs in Epoch AI's catalog, the repositories they published on Hugging Face, and posts from their own news pages.

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Models Open weights Lab posts

Epoch's list

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Lab

40 notable models from OpenAI, newest first. The date is Epoch AI's publication date for the model.

GPT-6.1 SolOpenAI · Multimodal, Language, VisionAPI accessSep 29 GPT-6 LunaOpenAI · Multimodal, Language, VisionAPI accessSep 22 GPT-6 Luna DecisionsOpenAI · Language, Vision, MultimodalAPI accessSep 22 GPT-6 SolOpenAI · Multimodal, Language, VisionAPI accessSep 22 ChatGPT Images 2.5OpenAI · Image generation, VisionHosted access (no API)Sep 8 GPT-Image-2.5 FlareOpenAI · Image generationAPI accessSep 8 GPT-Image-2.5 SunburstOpenAI · Image generationAPI accessSep 8

GPT-6 AstraOpenAI · Multimodal, Language, Vision · Training compute 9.4e26 FLOPAPI accessSep 3

GPT-5.6 CyberOpenAI · Cybersecurity, LanguageAPI accessAug 11 GPT-5.5 CyberOpenAI · CybersecurityUnreleasedMay 7 GPT-5.5 InstantOpenAI · Multimodal, Language, VisionAPI accessMay 5 GPT-5.5OpenAI · Multimodal, Language, VisionAPI accessApr 23 GPT-5.5 ProOpenAI · Multimodal, Language, VisionAPI accessApr 23 GPT Image 2OpenAI · Image generationAPI accessApr 21 GPT-5.4-CyberOpenAI · Cybersecurity, LanguageLimited accessApr 14 GPT-5.4OpenAI · Multimodal, Language, VisionAPI accessMar 5 GPT-5.4 ProOpenAI · Multimodal, Language, VisionAPI accessMar 5 GPT-5.3-Codex-SparkOpenAI · LanguageHosted access (no API)Feb 12 GPT-5.3 CodexOpenAI · LanguageAPI accessFeb 5 GPT-5.2 CodexOpenAI · LanguageAPI accessDec 18, 2025

GPT-5.2OpenAI · Language modeling/generation, Question answeringAPI accessDec 11, 2025

GPT-5.2 ProOpenAI · Multimodal, Language, VisionAPI accessDec 11, 2025 GPT-5.1-Codex-MaxOpenAI · LanguageAPI accessNov 19, 2025 GPT-5.1OpenAI · Multimodal, Language, VisionAPI accessNov 13, 2025 GPT-5.1 InstantOpenAI · Multimodal, Language, VisionAPI accessNov 13, 2025

Data: Epoch AI, CC BY 4.0. Changes: selected rows and columns of Epoch AI's database.