Critique: "Jev alternatives" misunderstand typed probabilistic decisions

Júlia Klee | Supersonic Labs @klee00zOriginally posted 2026.09.25

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It’s kind of wild seeing a new open source “Jev alternative” pop up every day claiming better accuracy, when a lot of them seem to miss the entire point of Jev Jev is not just an LLM fine-tuned to output JSON If you fine-tune Qwen to emit a structured decision in JSON, you still have an autoregressive language model generating tokens sequentially That’s fundamentally different from a model built around typed probabilistic decisions, where outputs are produced in parallel rather than generated token by token