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OpenAI answers TypeSafe’s Jev with a Decision API built on Luna

The New Stack reports on OpenAI’s Luna-based answer to Jev: an API that picks predefined answers instead of writing prose.

What it does

It is in limited preview. OpenAI claims 150-millisecond responses, but pricing, candidate limits and customization remain undisclosed.

Maker-reported (not independently measured by JevMade): OpenAI reports 150 ms responses, compared with 1.6 seconds for GPT-6 Luna.

Source checked 2026-09-29 — opened the primary source directly.