OpenAI

44 releases · Nov 2022Sep 2026

Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research. AI Release Tracker has logged 44 OpenAI models, from GPT-3.5 (Nov 30 2022) through GPT-6 Astra (Sep 3 2026). Every release below links to a dedicated page with benchmarks, parameters, and context window.

A new OpenAI model typically arrives about every 37 days, with the next projected around Thursday, Oct 8, 2026. Its strongest benchmark results to date include GPQA Diamond (96%, on GPT-6 Astra), BrowseComp (92.2%, on GPT-5.6 Sol), and ARC-AGI-2 (95%, on GPT-6 Astra). 2 of the 44 models tracked here are open-weight or open-source; the rest are proprietary.

Release cadence

Expected next release
Thu, Oct 8
Days since last releaseTypically every 37 days
 
Recent intervals
Thu, 3 Sep 2026 · GPT-6 Astra
24
Mon, 10 Aug 2026 · GPT-5.6-Cyber
45
Fri, 26 Jun 2026 · GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna
4
Mon, 22 Jun 2026 · GPT-5.5-Cyber
60
Thu, 23 Apr 2026 · GPT-5.5, GPT-5.5-Pro
37

Releases by year

Year-over-year totals for OpenAI. The current year is partial.

125221420222023202420252026YTD

Releases by day of week

Which days of the week OpenAI ships on.

Monday8
Tuesday6
Wednesday7
Thursday17
Friday6
Saturday(weekend)0
Sunday(weekend)0

Best benchmark scores

All releases

44 releases · Nov 30 2022Sep 3 2026

2022

1 release

Frequently asked questions

The most recent OpenAI model tracked on AI Release Tracker is GPT-6 Astra, released on Sep 3 2026.