For quite a while, OpenAI’s GPT-4 model was up to date until September 2021. However, recently, it appears that GPT-4 has been updated with an up-to-date dataset date of April 2023.
Knowing better than to trust what ChatGPT says, I tested this on ChatGPT web and different modes. I asked it with the default GPT-4 model and the Advanced Data Analysis model. I then checked GPT-3.5 as well.
GPT-4 on both web and mobile says April 2023. For GPT-3.5, it says January 2022.
![](https://i0.wp.com/ilikekillnerds.com/wp-content/uploads/2023/11/Screenshot-2023-11-06-at-4.19.47 pm.png?resize=1024%2C556&ssl=1)
![](https://i0.wp.com/ilikekillnerds.com/wp-content/uploads/2023/11/Screenshot-2023-11-06-at-4.21.43 pm.png?resize=1024%2C495&ssl=1)
![](https://i0.wp.com/ilikekillnerds.com/wp-content/uploads/2023/11/Screenshot-2023-11-06-at-4.26.04 pm.png?resize=1024%2C321&ssl=1)
![](https://i0.wp.com/ilikekillnerds.com/wp-content/uploads/2023/11/Screenshot_20231106_162154_ChatGPT-1.jpg?resize=477%2C1024&ssl=1)
Presumably, the updated dataset is in preparation for OpenAI’s dev day on November 6.