Jev + Opus 5.5 workflow cuts cost and time by about 80%
The author says pairing Jev with Opus 5.5 cut costs and time by around 80%: Jev selects relevant project notes, routes suitable tasks to a faster model, picks recovery paths when tools fail, and runs targeted checks before the full test suite, while Opus handles complex reasoning.

jev + opus 5.5... i simply can't comprehend why everyone isn't building this yet. in my workflow, it cut costs and time by around 80%. i think it’s one of the best ways to use them together. → select the relevant project notes before loading context → send suitable tasks to a faster worker → choose a recovery path when a tool fails → run targeted checks before the full test suite opus handles the complex reasoning. jev selects from the options prepared and validated by the harness. read the paper, then check out the complete jev guide below.
This post quotes another post: x.com/simplifyinai/status/2101615737756684455