v148 · origin trial · on-device AI

Quality Control Panel

Run the same prompt through three parameter configurations simultaneously — Deterministic, Balanced, Creative — and compare outputs, latency, and word-count side by side. Adjust all three temperature / topK settings before firing, then observe how sampling parameters affect both content and performance.

Origin trial — requires Chrome 148+ with the Prompt API enabled. Simulation mode active when the API is absent.

Parameter matrix — configure all three runs

Deterministic

temp 0.1

topK 5

Balanced

temp 0.7

topK 40

Creative

temp 1.5

topK 100

Prompt

Deterministic (t=0.1, k=5)

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Balanced (t=0.7, k=40)

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Creative (t=1.5, k=100)

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implementation reference

Need the exact API surface, compatibility boundaries, errors, lifecycle, and source links? Read the matching gendn reference ↗