Family
OpenAI

GPT-5.4 family

4 releases · Elo progression and succession lineage (D9)
Elo progression
Mar 2026GPT-5.4CLOSED—2473.4Mar 2026GPT-5.4 ProCLOSED—2786.0Mar 2026GPT-5.4 miniCLOSED—succeeds GPT-5.4-374.62098.8Mar 2026GPT-5.4 nanoCLOSED—succeeds GPT-5.4-507.81965.6