Post · Benchmarks & research
The first public System One model
State and explicit questions in; choices, scores and probabilities out.
Open x.com ↗这几天 X 上一直刷到 Jev。
最反常的一点是：它根本不写字。
TypeSafe AI 把 Jev 定义成第一款公开的 “System One Model”：
你给它一段状态 + 几个明确问题，它不生成长文，而是直接返回选择、评分、概率和置信度。
官方价格：
$0.042 / 100万输入 tokens，输出免费。
TypeSafe 还声称，在它针对
The decision Jev makes
Benchmark questions with known answers, to check accuracy and confidence.
Where it fits
Head-to-head tests, calibration studies and independent research into how well Jev decides, how fast, and at what cost. All 682 benchmarks & research projects →
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