The name now covers more than one vendor. OpenAI's DevDay 2026 preview constrains GPT-6 Luna to user-defined questions with finite answers for classification, routing, or next-action choice; pricing was unpublished as of September 30, 2026. Perplexity launched a Decisions API around October 1–2, 2026 priced at $0.04 per million input tokens with free output, backed by the Apache-2.0 pplx-decider-v1-27b weights. Both occupy the same hop as Jev — closed-set probabilities, not generated text — but still sit on generative-base models unless the backend is a System One architecture.