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Jev structured output language release

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TypeSafe AI released Jev, a System One model that returns typed, calibrated probability outputs instead of text, with input costs of $0.042 per 1M tokens and free output tokens. The release prompted multiple competing implementations within two days.

  • Input pricing $0.042 per 1M tokens; output tokens free
  • Returns typed answers with probabilities instead of text generation
  • At least 6 competing clones emerged within 2 days of launch
  • Vendor benchmarks provided but caveats documented
  • Designed for structured decision-making rather than open-ended generation