Anthropic uses two custom typefaces: Anthropic Sans (a humanist sans-serif) for body and UI, and Anthropic Serif (a contemporary text serif) for headlines and editorial marketing.
Anthropic uses two custom typefaces: Anthropic Sans (a humanist sans-serif) for body and UI, and Anthropic Serif (a contemporary text serif) for headlines and editorial marketing.
A bespoke humanist sans-serif tuned for long-form reading and product interfaces. Released as part of Anthropic's identity refresh.
A modern text serif Anthropic uses across its research posts, product pages, and brand storytelling.
The quick brown fox jumps over the lazy dog
font-family: 'Anthropic Serif', Georgia, 'Times New Roman', serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for Anthropic SerifThe quick brown fox jumps over the lazy dog
font-family: 'Anthropic Sans', Georgia, 'Times New Roman', serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for Anthropic SansThe quick brown fox jumps over the lazy dog
font-family: 'Anthropic Mono', ui-monospace, SFMono-Regular, monospace;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for Anthropic MonoThe quick brown fox jumps over the lazy dog
font-family: 'Jetbrains Mono', ui-monospace, SFMono-Regular, monospace;
Free for any use under the SIL OFL.
Get JetBrains Mono from JetBrainsThe quick brown fox jumps over the lazy dog
font-family: webflow-icons!important, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for webflow-icons!importantThe quick brown fox jumps over the lazy dog
font-family: Arial, Georgia, 'Times New Roman', serif;
The quick brown fox jumps over the lazy dog
font-family: 'Helvetica Neue', Georgia, 'Times New Roman', serif;
Sold by Monotype. Helvetica Now is the modernised cut.
Get Helvetica Neue from Linotype / MonotypeGet Font Info inspected the homepage of anthropic.com and parsed 1 stylesheet totalling 278.5 KB. Inside those stylesheets we found 8 @font-face declarations — the rules a browser uses to download and register a custom typeface. The primary typefaces are served from mixed, and 95 CSS rules reference them across the page.
Open the live inspector and hover any text on anthropic.com to see the exact font, weight, size and line-height for that element.
Open live font inspector for anthropic.comAnthropic Sans was designed by Anthropic with an external foundry. A bespoke humanist sans-serif tuned for long-form reading and product interfaces. Released as part of Anthropic's identity refresh.
No. Anthropic Sans is proprietary to Anthropic and isn't available for public licensing. The closest free or commercial alternatives are Inter, IBM Plex Sans, Source Sans 3.
If you want a similar look without Anthropic Sans, try Inter, IBM Plex Sans, Source Sans 3, Mona Sans. Inter in particular is widely available and free on Google Fonts or under an open-source license.
anthropic.com uses Anthropic Serif, Anthropic Sans and Anthropic Mono as its primary typefaces. These fonts are loaded from a self-hosted webfont, an unknown source and the operating system and applied across 95 CSS rules on the homepage.
anthropic.com loads its fonts from a self-hosted webfont, an unknown source and the operating system. Get Font Info detected 8 @font-face declarations across 1 stylesheet on the live page.
anthropic.com loads Anthropic Serif in 2 weights: 300 800, 400. If you want to match the look, request the same weights from your font host so you only ship what's actually used.
Yes — once you know the font name, you can load it from the same source. If Anthropic Serif isn't a fit (licensing, weight selection, look-and-feel), close alternatives include Lora, Source Serif 4 and Merriweather. Use the CSS snippet on this page as a starting point.
These fonts are self-hosted webfonts. They may be licensed commercially from a type foundry, custom-made for the brand, or freely available — you would need to identify the typeface and check its license at the foundry.
Compare the typography on anthropic.com with how other well-known sites load and use their fonts.
This page lists the fonts loaded by the homepage of anthropic.com. Get Font Info reads the live CSS — every @font-face rule, every font-family declaration — so you see the exact fonts the browser used, not an image-based guess.
More guides: find the font on any website, identify the typeface on a webpage, check what font a website is using, or URL font checker.