What fonts does Anthropic use?

Measured from the captured homepage: Anthropic Sans for headings and Anthropic Serif for body copy. Explore the original reference, palette and section breakdown below.

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Observed typography

Heading font: Anthropic Sans
Body font: Anthropic Serif
System: Two-family hierarchy

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Anthropic's website font choices

This page records what the browser rendered on September 21, 2026. It is a research reference for designers and developers comparing real products, not a claim about Anthropic's complete brand system.

A single family or a two-font system?

Anthropic separates roles: Anthropic Sans creates the display voice while Anthropic Serif handles reading copy and interface detail. Compare the hero, navigation and longer sections in the full reference to see where that contrast matters.

Use the font data with the full layout

Typography only makes sense with its surrounding system. Inspect the full Anthropic capture for color tokens, section order and responsive views, then compare it with the measured website font trends across the wider library.

Rebuild the idea, not the brand

Use this as a starting point for an original interface. Replace the source copy, logo and imagery, check the typeface license, and adapt the hierarchy to your content. For a broader set of real references, browse font pairing examples or homepage design examples.

Anthropic fonts — FAQ

What font does Anthropic use?

Anthropic uses Anthropic Sans for headings and Anthropic Serif for body copy in the captured homepage. The values are extracted from the rendered CSS capture and are presented as observed reference data, not an official brand guideline.

Is Anthropic Sans free to use?

Licensing depends on the typeface and the project. Check the font foundry or license before shipping it; this page identifies what appeared on Anthropic's site and does not grant a license to reuse it.