You have used ChatGPT, Claude or Gemini. You know roughly how an LLM works. And this week your feed has been full of something called Jev, with people calling it 200 times faster than an LLM, “the end of chatbots”, or just “a fancy classifier”, depending on who you follow. So you searched. Welcome, sit down, I will try to be the explanation I was looking for last week.
The short answer first. Jev is not a better LLM and it is not a replacement for one. It is a different kind of model that does one job, making structured decisions inside software, and does it very fast and very cheap. It cannot write a sentence. The most useful way to think about it is as the fast half of a system in which the LLM remains the slow, thoughtful half.
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