The closest free alternative to GT Pantheon is Spectral, 78% alike by measurement, free from Google Fonts. Libre Baskerville and Castoro come next.
GT Pantheon, by Tobias Rechsteiner & Noël Leu for Grilli Type, 2024. Measured on grillitype.com, October 23rd, 2026.
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
The quick brown fox jumps over the lazy dog. Typography is what language looks like.
Close matchGoogle Fonts · SIL Open Font License
GT Pantheon against Spectral, from the letters themselves. These numbers are why Spectral comes first, and what the CSS below corrects for.
GT Pantheon Spectral
Swap GT Pantheon for Spectral and nothing reflows. This sets Spectral at GT Pantheon’s x-height and line length, so headings, buttons and paragraphs break where they did.
font-family: "Spectral", serif;
font-size: 1.051em; /* up to GT Pantheon’s x-height */
letter-spacing: -0.01em; /* to GT Pantheon’s line length */GT Pantheon is a paid serif designed by Tobias Rechsteiner & Noël Leu, published by Grilli Type in 2024.
See GT Pantheon on grillitype.com ↗Spectral. Measured letter by letter, it’s 78% alike: 5% shorter x-height, sets 3% narrower, same weight, less stroke contrast. Libre Baskerville, Castoro, Libertinus Serif, Bona Nova and Fraunces are also close.
No. GT Pantheon is a paid serif from Grilli Type. Every alternative on this page is free for commercial use, under the SIL Open Font License.
By measuring the letters, not by comparing names or tags. GT Pantheon was measured as grillitype.com, October 23rd draws it: its proportions, the width of every letter and figure, its weight, its stroke contrast and the shapes of telling letters like a, g, R and Q. The same measurements were taken of 1,506 free fonts, and these came closest. Each match was then checked by eye.
Not if you use the CSS on this page. It sets Spectral 5.1% larger with a touch less letter-spacing, so text written for GT Pantheon keeps its x-height and its line lengths, and lines break in the same places.
Point Fontsight at any text on any website. It names the font, and offers a free look-alike you can try on the page, line breaks intact.
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