Open Source · Microsoft · OpenAI · Tom's Hardware
Jev-like decision models are flooding the AI market, after researcher claims TypeSafe copied their research
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Following the release of TypeSafe's Jev, many AI players have launched competitors, and many similar open-source projects from the likes of Microsoft, OpenAI, and many more have since emerged.
Key facts
- He referred to his arXiv paper on SalesRLAgent, describing how he created a model for probability estimation, published on March 30, 2025
- In the space of only a few weeks after Jev was released, the world saw Microsoft Decision, OpenAI Decisions API, and Fastino Glide
- Along with Jev, TypeSafe also released a brief description of its System One architecture
- Only days later, Nandakishor Mukkunnoth, founder of ConvAI Innovations, explained that he'd "designed the Jev architecture one year back
Summary
As a quick recap, Jev and its clones are APIs driven by decision models, for use in your own code. A Jev-like AI model will answer each of the questions or choices with a probability that can then be used in your own "if" statements. The release made a good portion of the internet abuzz, as the seemingly simple concept is extremely useful and neatly sidesteps the usual problems with trying to coax an LLM into giving a direct answer. Along with Jev, TypeSafe also released a brief description of its System One architecture.