← Artificial Acceleration
OpenAI · GPT series
GPT-4o (March 2025, chatgpt-4o-latest)
Released
27 Mar 2025
· 8 days after
o1-pro
Intelligence
—
no index score yet
Price
not priced
no list price
Speed
—
not measured
Weights
Closed
US lab
OpenAI’s best score over time
9 Jul 2026
26 Oct 2026
← previous from OpenAI
o1-pro
next from OpenAI →
GPT-4.1