ChatGPT VIDEO 27 February 2025

Introduction to GPT-4.5

Mia Glaese, Rapha Gontijo Lopes, Youlong Cheng, Jason Teplitz, and Alex Paino introduce and demo GPT-4.5.

Blocked by cookie preference

YouTube is ready to load

YouTube is only loaded after you allow optional external media. Before that, this player stays hidden.

Allow external media Cookie settings

YouTube

Mia Glaese, Rapha Gontijo Lopes, Youlong Cheng, Jason Teplitz, and Alex Paino introduce and demo GPT-4.5.

Mia Glaese, Rapha Gontijo Lopes, Youlong Cheng, Jason Teplitz, and Alex Paino introduce and demo GPT-4.5.

Related coverage

Read more →

ChatGPT Article

23 Apr 2026

Introducing GPT-5.5

Open article →

ChatGPT Article

5 Mar 2026

Introducing GPT-5.4

Open article →

ChatGPT Article

5 Feb 2026

Introducing GPT-5.3-Codex

Open article →

ChatGPT Article

18 Dec 2025

Introducing GPT-5.2-Codex

Open article →

More videos from ChatGPT

All videos

ChatGPT

8 May 2026

Codex can now use Chrome directly on macOS and Windows.

Open video →

ChatGPT

7 May 2026

We’re introducing three audio models in the API

Open video →

ChatGPT

7 May 2026

GPT-5.5 is a game changer for finance

Open video →

ChatGPT

7 May 2026

Introducing GPT-5.5 with Box

Open video →