What fonts does ChatGPT use?
Measured from the captured homepage: Apple system body for headings and Apple system body for body copy.
Open full ChatGPT reference →Observed typography
- Heading font
- Apple system body
- Body font
- Apple system body
- System
- One family across both roles
How the page is built
ChatGPT's captured homepage has 2 sections and 1 inner pages.
- 1 content
- 1 screen
Other sites that use this pair
No other captured site in this library uses this same pair of fonts.
Captured colors
The captured homepage uses these 6 colors, in capture order.
- #fcfcfc
- #ffffff
- #0d0d0d
- #5d5d5d
- #ba2623
- #8f8f8f
Styles recorded: Light.
Same category, same heading font
0 of the 110 other captured AI sites in this library use Apple system body for headings.
ChatGPT's website font choices
Captured September 25, 2026. Read it with the full reference, where the palette, section order and responsive views sit next to the type.
A single family or a two-font system?
ChatGPT sets headings and body in Apple system body, so the hierarchy comes from scale and weight.
Compare it across the library
See the website font trends and the font pairing examples.
ChatGPT fonts — FAQ
What font does ChatGPT use?
ChatGPT uses Apple system body for headings and Apple system body for body copy in the captured homepage.
Is Apple system body free to use?
Check the foundry license for Apple system body before shipping it. This page records what appeared on ChatGPT's site and grants no reuse rights.
What colors and sections were captured for ChatGPT?
6 colors (#fcfcfc, #ffffff, #0d0d0d, #5d5d5d, #ba2623, #8f8f8f) and 2 homepage sections, with 1 inner page.
Which other sites use Apple system body and Apple system body?
No other captured site in this library uses this same pair of fonts.
Fonts come from the rendered capture and may change when the site does. Library methodology