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: anthropicSans, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for anthropicSansThe quick brown fox jumps over the lazy dog
font-family: anthropicSerif, Georgia, 'Times New Roman', serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for anthropicSerifThe quick brown fox jumps over the lazy dog
font-family: anthropicMono, ui-monospace, SFMono-Regular, monospace;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for anthropicMonoThe quick brown fox jumps over the lazy dog
font-family: jetBrainsMono, ui-monospace, SFMono-Regular, monospace;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for jetBrainsMonoThe quick brown fox jumps over the lazy dog
font-family: 'anthropicMono Fallback', ui-monospace, SFMono-Regular, monospace;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for anthropicMono FallbackThe quick brown fox jumps over the lazy dog
font-family: 'AnthropicMono Italic Web S.p.0x1wr 4z1xgw3', ui-monospace, SFMono-Regular, monospace;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for AnthropicMono Italic Web S.p.0x1wr 4z1xgw3The quick brown fox jumps over the lazy dog
font-family: 'AnthropicMono Roman Web S.p.16xhthj2n Pap', ui-monospace, SFMono-Regular, monospace;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for AnthropicMono Roman Web S.p.16xhthj2n PapThe quick brown fox jumps over the lazy dog
font-family: 'anthropicSans Fallback', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for anthropicSans FallbackThe quick brown fox jumps over the lazy dog
font-family: 'AnthropicSans Italic Web S.p.212cqpul8 Axk', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for AnthropicSans Italic Web S.p.212cqpul8 AxkThe quick brown fox jumps over the lazy dog
font-family: 'AnthropicSans Roman Web S.p.1e3n6bt4oqimz', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for AnthropicSans Roman Web S.p.1e3n6bt4oqimzThe quick brown fox jumps over the lazy dog
font-family: 'anthropicSerif Fallback', Georgia, 'Times New Roman', serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for anthropicSerif FallbackThe quick brown fox jumps over the lazy dog
font-family: 'AnthropicSerif Italic Web S.p.1fjksu1uimpf3', Georgia, 'Times New Roman', serif;
Looks like a custom or commercial web font. Try MyFonts for licensing.
Search for AnthropicSerif Italic Web S.p.1fjksu1uimpf3Get Font Info inspected the homepage of anthropic.com and parsed 11 stylesheets totalling 1.05 MB. Inside those stylesheets we found 20 @font-face declarations — the rules a browser uses to download and register a custom typeface. The primary typefaces are served from custom web font, and 500 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 anthropicSans, anthropicSerif and anthropicMono as its primary typefaces. These fonts are loaded from a self-hosted webfont and applied across 500 CSS rules on the homepage.
anthropic.com loads its fonts from a self-hosted webfont. Get Font Info detected 20 @font-face declarations across 11 stylesheets on the live page.
anthropic.com loads anthropicSans without explicitly declaring weights — the browser picks the default Regular (400) and falls back to system rendering for bold and italic styles.
Yes — once you know the font name, you can load it from the same source. If anthropicSans isn't a fit (licensing, weight selection, look-and-feel), close alternatives include Inter, Manrope and DM Sans. 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.