@chatgpt
ChatGPTThis handwritten letter was sent by the grandfather of a member of our team to their grandmother. It had previously been challenging to decipher for both humans and AI models, so we tried it with our newest reasoning model OpenAI o3—slide for the letter’s surprise ending! OpenAI o3 and o4-mini are our smartest and most capable models to date. They are our first models to integrate images directly into their chain of thought—they don’t just see an image, they think with it. Pro, Plus, and Teams users can select o3 and o4-mini in the model picker, Free users can tap the Reason button to access o4-mini, starting today.
On the profile · Apr 17, 2025