Increasing font size of ChatGPT app 1.2026.118 on macOS: Doesn't work

ChatGPT Bugs
1

Increasing the font size of ChatGPT app 1.2026.118 on macOS Tahoe 26.4.1 doesn’t work

App
App321×196 16 KB

2

Hey eblerim, it can be annoying.

Right now, the macOS app doesn't have a separate in-app setting to increase UI text size. So, what you're seeing is expected.

However, I will raise this as a bug internally so engineering can work on it.

As a workaround, can you confirm if you can use macOS display scaling feature to make UI text larger system-wide? This can be done via System settings > Displays.

- Avinash

3

I’m seeing a related issue on ChatGPT for macOS 1.2026.118.

In my case, the problem is not that text zoom never works. The issue is that the message/content area does not correctly keep or restore the custom text size.

Current behavior:

  • When I open the app, the chat message text is small/default-sized.
  • The input box/composer text is already using my custom enlarged text size correctly.
  • If I press Command + directly, the message area does not always behave as expected.
  • However, if I first press Command 0 to force the view back to default, then press Command + again, the message text can be enlarged correctly.
  • The problem comes back when I switch to another conversation. After switching conversations, the message/content area resets to the small/default text size again.
  • The input box still keeps the custom enlarged text size.

So it looks like the zoom/font-size state is being applied inconsistently:

  • The composer/input box preserves the custom text size.
  • The chat message/content area loses it when opening the app or switching conversations.
  • Command 0 followed by Command + can temporarily fix it, but the fix is not persistent.

Environment:

  • ChatGPT for macOS: 1.2026.118
  • Device: MacBook Pro with Apple M1 Pro
  • Memory: 16 GB
  • macOS: Tahoe 26.5

Expected behavior:
The message/content area and the input box should both respect the same user-defined text size, and the setting should persist after opening the app or switching conversations.

4

Thanks for the input, @Agumuz.

Just to better understand the behavior change: do you remember whether you were previously able to increase the text size directly inside the ChatGPT macOS app itself, or were you using macOS/system-level zoom or text scaling shortcuts?

- Avinash