Jev in production › SQL and data pipelines

grev

Unix-style CLI filters pipe text through Jev for typed yes/no and classification decisions, at a claimed sub-cent cost per few thousand lines (author).

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sub-cent cost per few thousand linesmeasured, as published by the source
Use
SQL and data pipelines
Industry
Developer tools
Form
Open-source tool
Stage
Announced
Listed
2026-09-25
Found via
github
Repository
aurorainfra/grev
Stars
56
Forks
1
Last push
2026-10-02
Language
Go
License
Apache-2.0

The README opens with

Unix filters that ask questions instead of matching patterns.

The tools run on TypeSafe's Jev models, which answer typed questions with calibrated probabilities instead of generating text. That's why these tools behave like grep, sort or cut: output is always your input. Labels and scores appear only as explicit columns. A few thousand lines cost fractions of a cent and take seconds.

tool like does --------- grev grep print the records the model says yes to isv test answer a yes/no question about the whole input with the exit status oneof case print which label fits the whole input tagv awk label every record; --split DIR routes records into files sortv sort sort in an order described in words, by pairwise comparison rank sort sort records by...

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For the project's own README, linking back here:

Listed in Jev in production

Also used for sql and data pipelines