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Model timeline

Newest first, by the first day the public could use each model. Models that were announced but not released are listed by their announcement date.

WeightsAll Open weights Closed

CompanyAll Google Anthropic Qwen Team OpenAI Mistral AI Meta BigScience Workshop EleutherAI

9 models

2024

Jul 18, 2024GPT-4o mini (July 2024 release) · OpenAIClosed
May 13, 2024GPT-4o (May 2024 release) · OpenAIClosed

2023

Announced Mar 15, 2023GPT-4 pretrained base (paper model) · OpenAIClosedAnnounced, no public access
Mar 14, 2023GPT-4 (March 2023 release) · OpenAIClosed

2022

Nov 30, 2022ChatGPT (November 2022 research-preview model) · OpenAIClosed
Announced Jan 27, 2022InstructGPT (January 2022 API-default announcement) · OpenAIClosedAnnounced, no public access

2020

Jun 11, 2020GPT-3 family · OpenAIClosed
Announced May 28, 2020GPT-3 175B (paper model) · OpenAIClosedAnnounced, no public access2K context

Undated

Date not recordedGPT-6 Luna · OpenAIClosedAnnounced, no public access1.1M context