Family
OpenAI

GPT-5.4 family

4 releases · Elo progression and succession lineage (D9)
Elo progression
Mar 2026GPT-5.4CLOSED—2419.4Mar 2026GPT-5.4 ProCLOSED—2716.4Mar 2026GPT-5.4 miniCLOSED—succeeds GPT-5.4-390.12029.3Mar 2026GPT-5.4 nanoCLOSED—succeeds GPT-5.4-530.61888.8