I built jevpipe as a wrapper for TypeSafe's Jev System 1 model.
Jev answers yes/no, picks from a few choices or gives a score, with probabilities, and it's fast
and cheap. See https://docs.typesafe.ai/introduction for more details on Jev. It performs on par
with small LLMs while being faster and cheaper (independent study:
https://www.ayautomate.com/blog/jev-vs-llm-benchmark), and in my benchmark it was better
calibrated than DeepSeek V4.1 Flash (see below).
I wanted agents to be able to use such a System 1 in the middle of a task without writing a
script each time. So jevpipe is a small CLI that can be used like grep or other Unix tools:
pipe lines or files in and get classifications out.
filter prints the lines that pass, map returns typed answers as JS
basically program their own System 1 for anything and apply it to a large chunk of data for
"gut feeling" decisions.
I also added an agent skill for jevpipe that teaches the agent when and how to use it.
I built jevpipe as a wrapper for TypeSafe's Jev System 1 model.
Jev answers yes/no, picks from a few choices or gives a score, with probabilities, and it's fast and cheap. See https://docs.typesafe.ai/introduction for more details on Jev. It performs on par with small LLMs while being faster and cheaper (independent study: https://www.ayautomate.com/blog/jev-vs-llm-benchmark), and in my benchmark it was better calibrated than DeepSeek V4.1 Flash (see below).
I wanted agents to be able to use such a System 1 in the middle of a task without writing a script each time. So jevpipe is a small CLI that can be used like grep or other Unix tools: pipe lines or files in and get classifications out.
Example:
filter prints the lines that pass, map returns typed answers as JS basically program their own System 1 for anything and apply it to a large chunk of data for "gut feeling" decisions.I also added an agent skill for jevpipe that teaches the agent when and how to use it.
If you are interested in technical details, I also did a benchmark because that seemed to be missing from the recent evaluations. But it is by no means coding only or just a search tool. https://github.com/fabianboth/jevpipe/blob/main/bench/README...
It needs an OpenRouter key. I'm not affiliated with TypeSafe.
very nice. I finally made typesafe.ai account and put down $5 whole dollars.
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