Jev 三个可跑 demo：订机票、帖子排序、交易回测

Oliver Prompts @oliviscusAI原推发布于 2026.09.19

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typesafe just released an ai model that never writes a single word. jev is typesafe ai's first "system one" model, launched september 15. it returns typed decisions instead of chatting, a yes/no probability, a pick from a list, or a score, each in 70-500ms. > 200x faster & 400x cheaper than a full llm call > answers multiple questions per request in parallel > trained for calibrated probabilities, not chat quality three things people already built with it, and you can run yourself: 1. found a flight in 7 seconds for $0.0039, 5-line install 2. a claude code tip found by ranking 1,000 posts with jev 3. 63k-star trading repo now runs its backtests on jev