Happy GPT-4.5 day to those who celebrate.
View Original Article →Published: 2/27/2025
**Happy GPT-4.5 day to those who celebrate.**
We knew OpenAI's GPT-4.5 launch was imminent, and now it has cheekily revealed a live stream is due at 3 PM ET today. "Livestream in 4.5 hours," said OpenAI in a post on X, seemingly confirming references to GPT-4.5 that have been spotted on ChatGPT this week.