OpenDecision
a 400M zero-shot model makes local decisions, plays Doom
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Jev's launch inspired me to work on this project. I had used fine tuned bert models, zero-shot models to achieve jev like functionality in healthcare insurance fraud audits in the last 2-3 years with good results.Jev's launch showed that there is still market and demand for these type of systems. So I wanted to build a FOSS version which would push the research and tinkering (R&T) in this direction.Do not use this where decisions can be costly. There's an accuracy/intelligence ceiling with these models no matter what the api seller tells you.Use this where you can tell the affected party - "oh yeah, sometimes it can mess up" and you both can have a laugh on the expense of machines.On Jev and Typesafe - I think Jev is great, especially the speed, the documentation and the product design itself.Happy to answer any questions.Thanks, D
HN · launched Sep 21, 2026 · 6 upvotes (top 67%) · 0 views
Niche: reinforcement learning frameworks · 72 launches, 3 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- Developer
- AI-native
- Hobby / open-source project
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More like this: all 72 launches in reinforcement learning frameworks →
Could you build this?
Partial The Python API wrappers and schema primitives are easy to code, but training, calibrating, and distilling a specialized 400M zero-shot NLI model for low-latency decision making requires ML engineering expertise.
What it would actually take: The core engine requires fine-tuning a small transformer cross-encoder (such as DeBERTa-v3) on structured natural language inference, question-answering, and state-evaluation datasets using PyTorch. The inference pipeline requires probability calibration (temperature scaling) to ensure consistent thresholding for choice/relation primitives, along with ONNX/TensorRT quantization to hit sub-100ms inference times on local consumer CPUs.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one : 424 launches clear the similarity bar, closest 8 shown.
Attention rank: #347 of 425 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 321 days after the earliest competitor.
- open-alternative-jev · github · 2026-09-18 · 50 upvotes · similarity 0.58
- JevBench, a reproducible benchmark for typed decision models · hn · 2026-09-22 · 149 upvotes · similarity 0.57
- open-jev-typed-decision-engine · github · 2026-09-19 · 43 upvotes · similarity 0.57
- awesome-jev · github · 2026-09-18 · 106 upvotes · similarity 0.54
- Jev by Typesafe · ph · 2026-09-18 · 10 upvotes · similarity 0.53
- OpenJev · github · 2026-09-20 · 27 upvotes · similarity 0.53
- openJev-verdict-2.0 · github · 2026-09-19 · 276 upvotes · similarity 0.52
- Jev AI — Jev Model Online · ph · 2026-09-22 · 1 upvotes · similarity 0.52
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