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Every model.
One point.

A unified interface to every AI model. Pick a model — or let Singular auto-route — and get streaming answers with citations, branching, and cost visibility in a single thread.

Routing
Every prompt is routed to the best model for cost, latency, and capability. Swap providers without touching your thread.
Identity
Clerk provides consumer identity. The gateway remains the source of truth for runtime auth, quotas, billing, and BYOK.
Transparency
Every response shows which model answered, what it cost, how long it took, and which sources were cited.
Control
BYOK lets you bring your own provider keys. Spend stays with your provider, while routing policy and request metadata stay visible in Singular.
Boundary statement

Clerk provides consumer identity and sessions. The gateway remains the source of truth for runtime authorization, quotas, billing, BYOK, routing policy, and API keys. Clerk users are linked to internal users and runtime keys server-side; no provider keys or long-lived gateway keys are exposed to the browser.