ChatGPT isn't based on just one AI model. On the contrary, there are a number of different models you can choose to power the chatbot with— even more if you pay for it. While you can experiment ...

OpenAI is keeping up its rapid-fire pace of new AI releases. The company introduced the o3 and o4-mini models to its ChatGPT platform in April. At the time, the business promised that a pro model ...

Images generated through ChatGPT based on the 4o model won’t have AI watermarks. However, the brand has indicated images will include C2PA⁠ metadata denoting them as AI-generated.

Adding GPT-4.1 and 4.1 mini to ChatGPT adds to an already complex model selection that includes GPT-4o, various specialized GPT-4o versions, o1-pro, o3-mini, and o3-mini-high models.