New checkboxes are now found under “Customize ChatGPT”:
The options are at the bottom, and could be missed on a smaller browser viewport, or if you never visit there.
I tested, and the selections to disable these tools only take effect when “enable for new chats” is toggled on (which also includes the instruction text) - and then you start a new chat, as it says.
The benefit is: less distraction to the AI when these are disabled.
Instead of needing to employ even more unnecessary prompt injection that comes along when using GPTs, simply for a GPT that has a dozen lines of DALL-E instructions removed, you can go right to the source.
As this is retained per-chat, you can also return to a past “no tools” chat with the customized behavior.
Also, the tools aren’t disabled, just uninstructed. Write enough instructions yourself and you still get your tool use by AI - without pesky prompting problems placed: