GPT-4o hallucinates context, unlike 4.0/3.5

[warm dragon]

ChatGPT shared link:

https://chatgpt.com/share/00b1d403-1553-44c2-ba85-30e48c197f3e
https://chatgpt.com/share/c2ebc1ee-4599-44d8-bf00-248edc625347
Steps to reproduce:

1. Prompt: What are they talking about in this thread?

Expected result:

Model responds: What thread?

Actual result:

[Searches internet for random things]

Additional information

Browser: Chrome/Mac App
OS:Mac/PC