GPT-4 Finished Training 4 Years Ago: A Look at OpenAI's Accelerating Pace

haider1 · x · 2026-08-09

OpenAI co-founder Greg Brockman noted that GPT-4 finished training exactly four years ago. In response, a user compiled a timeline of OpenAI's core model releases: GPT-4 was released about 3 years and 5 months ago, GPT-4o 2 years and 3 months ago, o1-preview 1 year and 11 months ago, and GPT-5 almost exactly a year ago.

This密集 and disruptive release cadence highlights how frighteningly fast we normalize groundbreaking AI advancements.

Related event: GPT-4 Marks Fourth Anniversary of Training Completion(6 posts)→

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