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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

11 models

Upcoming

Announced Oct 28, 2026Gemini 4 Carbon · GoogleUpcoming

2026

Oct 13, 2026Gemini 4 Argon · GoogleClosed

2025

Mar 25, 2025Gemini 2.5 Pro Experimental (March 2025) · GoogleClosed1M context

2024

Dec 11, 2024Gemini 2.0 Flash (December 2024 experimental) · GoogleClosed
Feb 21, 2024Gemma 2B (initial pretrained) · GoogleOpen weights8K context
Feb 21, 2024Gemma 7B (initial pretrained) · GoogleOpen weights8K context
Announced Feb 15, 2024Gemini 1.5 Pro (initial preview) · GoogleClosedAnnounced, no public access

2023

Dec 13, 2023Gemini 1.0 Pro · GoogleClosed
Announced Dec 6, 2023Gemini 1.0 Ultra · GoogleClosedAnnounced, no public access

2022

Announced Apr 5, 2022PaLM 540B (paper model) · GoogleClosedAnnounced, no public access

Undated

Date not recordedGemini 3.8 Flash · GoogleClosed