Anthropic vs OpenAI
75 token-level differences between these two design systems.
Background
#faf9f5 → #ffffff Text
#141413 → #000000 Brand
#cc785c → #000000 Border
rgba(20, 20, 19, 0.10) → rgba(0,0,0,0.1) Display font
Anthropic Sans → OpenAI Sans Body size
20px → 16px colors 65 changed
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bg #faf9f5 → #ffffff ~
surface #ffffff → #fafafa ~
text #141413 → #000000 ~
text-faint #87867f → #b4b4b4 ~
text-muted #b0aea5 → #5d5d5d ~
brand #cc785c → #000000 ~
on-brand #faf9f5 → #ffffff ~
link #141413 → #000000 ~
link-hover #cc785c → #5d5d5d ~
border rgba(20, 20, 19, 0.10) → rgba(0,0,0,0.1) ~
border-strong rgba(20, 20, 19, 0.20) → rgba(0,0,0,0.16) +
bg-soft #f1f1f1 +
bg-section #f7f7f7 +
surface-card #ffffff +
surface-hover rgba(0,0,0,0.04) +
surface-press rgba(0,0,0,0.08) +
text-subtle #8e8e8e +
text-on-brand #ffffff +
text-on-dark #ededed +
brand-hover #1a1a1a +
brand-active #2c2c2c +
brand-on-dark #ffffff +
accent #10a37f +
accent-hover #0d8a6b +
accent-soft #d6f3e8 +
link-visited #000000 +
border-soft rgba(0,0,0,0.08) +
scrim rgba(0,0,0,0.5) +
shadow-card rgba(0,0,0,0.06) +
shadow-elev rgba(0,0,0,0.10) +
shadow-modal rgba(0,0,0,0.20) +
success #10a37f +
warning #d97706 +
warning-soft #fdf3e7 +
danger #cc2525 +
danger-soft #fae5e5 +
info #3a3a3a −
bg-secondary #f0eee6 −
bg-secondary-hover #e8e6dc −
text-medium #3d3d3a −
text-soft #5e5d59 −
brand-warm #d97757 −
brand-deep #a04a2c −
swatch-clay #d97757 −
swatch-kraft #d4a27f −
swatch-manilla #ebdbbc −
swatch-oat #e3dacc −
swatch-coral #ebcece −
swatch-fig #c46686 −
swatch-heather #cbcadb −
swatch-cactus #bcd1ca −
swatch-olive #788c5d −
swatch-sky #6a9bcc −
selected-bg #f0eee6 −
disabled #b0aea5 −
border-subtle rgba(20, 20, 19, 0.05) −
border-clay rgba(204, 120, 92, 0.30) −
success-bg #bcd1ca −
success-text #3d5a47 −
warning-bg #ebdbbc −
warning-text #7a5e1f −
danger-bg #ebcece −
danger-text #8a3a3a −
info-bg #cbcadb −
info-text #3a3a6a typography 5 changed
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display {"family":"Anthropic Sans","size":96} → {"family":"OpenAI Sans","size":48} ~
h1 {"family":"Anthropic Sans","size":64} → {"family":"OpenAI Sans","size":40} ~
h2 {"family":"Anthropic Sans","size":48} → {"family":"OpenAI Sans","size":32} ~
body {"family":"Anthropic Serif","size":20} → {"family":"OpenAI Sans","size":16} ~
label {"family":"Anthropic Mono","size":13} → {"family":"OpenAI Sans Mono","size":12} radius identical
No differences.
spacing 5 changed
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xs 1px → 4px ~
sm 2px → 8px ~
md 6px → 16px ~
lg 12px → 32px ~
xl 20px → 48px