Jev case: Built an impossible to beat CPU in my browser

@harshdev_ Harsh · Sep 20, 2026 · case #501918 · listed via Jev Hub

Still from the clip posted with this case; watch it in the original post on X.

Built a browser FPS with an unbeatable CPU opponent, trying Jev before switching to classifier.dev.

The original post

Built an impossible to beat CPU in my browser FPS, SystemOneFPS. System 1 decisions run on https:// classifier.dev by @michael_chomsky . I tried Jev by TypeSafe first, ended up using https:// classifier.dev. Watch it read my moves. Try to beat it. Link in reply. #AI #GameDev

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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 games & playable demos, classification & data extraction, browser & computer use. 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. Other posts in the same family are on the games & playable demos page.

🎮 Games & playable demos 🗂️ Classification & data extraction 🌐 Browser & computer use