Interactive experiments with TypeSafe Jev, from support routing to 3D driving simulations with real AI decisions and visible sensor inputs.
Local alternatives to Jev — page 3
Independent models and shims that follow the System One interface. They can replace hosted Jev for some workloads; they are not TypeSafe products.
195 active projects in this collection. All collections →
Local, open-source Jev alternative: browser agent decisions with Laya (System One model) on your own machine. No cloud, no API key. Playwright/CDP, MCP-friendly.
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Open-source, local Jev alternative: a System One decision layer with provably calibrated confidence (ECE 0.170→0.071). Typed decisions, runs offline, no API key, no waitlist.
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⚡ Foq — the FREE, local, open-source alternative to Jev. Typed System 1 decisions in ~25 ms — no waitlist, no cloud, no per-token cost. foq.fr
Curated TypeSafe Jev / System One GitHub projects, open-source alternatives, and Jev news
Small, calibrated decision models on your own machine: systemone-compatible local server, 6 agent skills, Claude Code guard, MCP tools. Weights on Hugging Face.
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Benchmark TypeSafe JEV against LLMs, fine-tuned BERT, Laya and zero-shot NLI on text classification: accuracy, calibration, latency, throughput, cost
Awesome projects built with Jev from Typesafe AI
Use local and hosted classifiers aka decision models aka Jev-like models, all through a single TypeSafe API
Curated list of the open System One ecosystem: open models, independent benchmarks, calibration and constrained-decoding tooling.
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Opensource Jev
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turn any llama-server into a jev system one endpoint
NanoJev Snake Arena: 1v4 human-vs-AI battleship + 100-agent swarm simulator. Local demo of Jev System-One model (open-source mini replica).
Open-source Jev-style System One decision model. Gemma 3 270M with a scoring head — fast, calibrated decisions in a single forward pass. No text generation. Inspired by TypeSafe.ai's Jev.
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No project description available.
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Jev-style decision model based on LFM2.5-350M
Awesome Jev: an evidence survey of Jev and Jev-like typed decision models — calibration, selective control and open implementations, with a searchable literature site.
ReflexBench — open benchmark and evaluation harness for System One models and typed decision engines
Curated list related to System One
A Jev-like decision engine powered by DiffusionGemma and SGLang. Jev with eyes.
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hearim (헤아림) — Jev-compatible multi-backend System One gateway in Go
A curated projects built with Jev, TypeSafe's System One model.
Jev-style calibrated decision model (Choice/Score/Noul) on Qwen3.5-0.8B
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JevNext · More than Choice — A simple algorithm that equips any Jev-like model with numerical control.