AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

OpenAI

o4-mini-high

Released 1 year ago · Apr 16 2025

About o4-mini-high

o4-mini-high is an AI model released by OpenAI on Apr 16 2025, 0 days after o4-mini. It is the 14th tracked release from OpenAI out of 31 total.

About OpenAI: Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.

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