4o has been out since May last year, while omni (now rechristened as 4.5) only f... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		sigmoid10 on March 2, 2025 \| parent \| context \| favorite \| on: GPT-4.5: "Not a frontier model"? 4o has been out since May last year, while omni (now rechristened as 4.5) only finished training in October/November.

cubefox on March 2, 2025 [–]

4.5 was called Orion, not Omni.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact