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H2O-Lightning-4B: Apache-2.0 4B Decision model, official #1 open model on JevBench (above Jev)

This story is from 2026-10-09. It is preserved in the archive; the latest stories are on the live feed.

Disclosure: I work at H2O.ai. We released H2O-Lightning-4B, an open-weight (Apache-2.0) model for the "decisions API" style of inference that Jev made popular: you send a state plus typed questions (pick one / yes-no / score), and get calibrated probabilities back from a single forward pass. No gen…

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  1. 2026-10-09 20:31 · r/huggingface
    H2O-Lightning-4B: Apache-2.0 4B Decision model, official #1 open model on JevBench (above Jev)

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  3. TypeSafe AI Secures $870M at $7.5B Valuation as Non-Text Jev Model Gains Rapid Enterprise Adoption — AI Insider
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  5. I tested 14 "decision models" against local LLMs on 56 real triage tasks. Qwen3.5-9B beat every one of them. — r/LocalLLM
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  8. A Practical Guide to OpenAI's New Decisions API — Towards Data Science

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