Reference fixture · openai

# AI that works for everyone.

OpenAI builds safe artificial general intelligence for humanity. A quietly literary interface: Signifier for display moments, Söhne for system text, OpenAI Teal as the lone accent.

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Recent models

GPT-4o Latest
GPT-4 Turbo Stable
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What this fixture exercises

## Restraint as identity.

### Two voices

Signifier (serif) for editorial display moments only. Söhne sans for all UI and body text. Weights cap at 600 — 700+ feels off-brand.

### Teal accent

`#10a37f` — the lone color in an otherwise neutral system. Links, highlight badges, success path CTAs. Hairline borders (#e5e5e5) used sparingly; whitespace as primary divider.

### Generous rhythm

--leading-body: 1.65. --leading-tight (Signifier display): 1.08. 96px section rhythm on desktop. Whitespace is the architecture.

Form components

## Soft radius, teal focus.

12px radius on inputs; border: 1px solid #e5e5e5 at rest. Focus: border `#10a37f` + 3px rgba ring.

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