Camera-only autonomous drone clears obstacle course with Jev judgment model, built in 15 minutes for $0.10
alex_verem · x · 2026-09-20
RomanSlack open-sourced jev-drone: a quadrotor flying a five-station obstacle course in MuJoCo using only its onboard camera. Built in 15 minutes, inference cost just 10 cents.
- The airframe is the real Skydio X2 from MuJoCo Menagerie, flown by a geometric controller; nothing is scripted.
- Jev (TypeSafe) is not a vision model — it takes JSON and returns typed answers with probabilities, so it can't be the perception layer or run at control rate.
- The architecture splits work: Jev sits in the loop at 2.5Hz deciding what a situation means, while all time-critical control stays in ordinary code at 500Hz.
A clean demo of hybrid "small judgment model + classical control" design; repo has 83 stars.
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