Demonstrates Prompt Injection Against Jev

Frank Chen created a small demo showing how prompt injection could change Jev’s answer.

Frank Chen@francchen𝕏

I don’t know if people still remember Jev. Things move so fast here. I’ve spent the last few days testing it, and found a few things I think builders should see. Prompt injection is one of the most interesting things to test in AI, so I made a little demo to show how it could change Jev’s answer. Jev is a great model. I just want people to know what to watch out for when they use it.

Sep 23, 2026X postsView on X

Chen says he spent the last few days testing Jev. He describes Jev as a great model and says he wants builders to know what to watch out for when using it.

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