Frozen 100-question-per-cell check of TypeSafe Jev on Korean versus English reading, paraphrase, and medical exam items, with recorded responses and uncertainty intervals.
Reproducible early-access evaluation of Jev on Korean understanding and medical text, with runtime and cost evidence
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About this project
Can you use TypeSafe Jev on Korean text, or should you translate everything to English first? This is a small, frozen, reproducible check that tries to answer that — 100 questions per cell, drawn from four public test sets, with every response recorded. It is a sample check, not a benchmark: 100 questions give roughly ±8 points of uncertainty, so small differences here are not findings.
Korean reading comprehension scored 96 against 97 in English on identical Belebele items.
Paraphrase judgement was the weak spot in both languages at 76 Korean and 80 English.
Includes a Luna reference point plus order-swap and confidence analysis over recorded answers.
Reports speed, input-only billing, and per-option probabilities rather than generated text.
Watch out
100 questions per cell means wide uncertainty bands, and the two medical exams are different tests rather than a language comparison. Copy reviewed against the repository README on 2026-10-04, not from running it.
Questions about this entry
Short answers drawn from the linked project or page.
No. With 100 questions per cell the uncertainty is roughly 8 points, so only the Korean medical gap for Luna clears zero. Treat the rest as suggestive rather than conclusive.
Yes. Belebele and PAWS-X use the same questions professionally translated, so those rows isolate language. The two medical sets are unrelated exams and cannot be subtracted.
Korean instructions scored within a point or two of English instructions on Korean content, so the digest advises against translating prompts. Reordering inputs still shifts about one answer in eight in both languages.
Jev returns a probability per option at once with no reasoning text to parse, billed on input only, at 221 ms median against 1110 ms for the reference model. That shape is also what enables the confidence analysis.
100 questions per cell drawn from four public test sets, so each number carries roughly 8 points of uncertainty and the author calls it a sample check, not a benchmark.
Jev's median is 221 ms against Luna's 1110 ms, and Jev is billed on input only because it produces no output tokens, where Luna spent about 12 per answer.
Belebele reading comprehension and PAWS-X paraphrase, which are the same questions professionally translated and isolate language, plus KorMedMCQA and MedQA, two unrelated medical licensing exams.
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