I rebuilt Tesla Full Self Driving with Jev in less than an
Rebuilt a Tesla Full Self Driving style demo with Jev in under an hour, using it as the decision layer for driving actions.
The original post
I rebuilt Tesla Full Self Driving with Jev in less than an hour.
This model is a total unlock.
From the same thread
- @jpschroeder — Tesla Full Self Driving (Jev demo) is now open source and you can try it online yourself! 👈 try it 👈 keep it
- @AiAdventurerx — He didn’t fine-tune a driving model. He wired Jev into a Tesla-style FSD loop in under an hour. Justin Schroeder’s demo uses TypeSafe’s decision model — no text generation, just high-frequency
- @Mikadzyki_NFT — SOMEONE PUT JEV BEHIND THE WHEEL AND BUILT AN AUTOPILOT PROTOTYPE IN UNDER AN HOUR According to the developer, that was enough time to get a complete driving decision loop running in a simulation
Engagement when collected
Numbers are a snapshot taken from X when the case was added to the library (schema v1, collected 2026-09-19); they will not match today.
Where this case fits
Filed under general Jev builds. In the pattern Jev is built for, the model answers a bounded question per step — and ordinary code acts on the answer, because the answer is already a value rather than a paragraph. Browse the full case library for the work it sits next to.
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Last updated: 2026-09-22 · sources & corrections · every card links to its author's original post