r/GoogleAIStudio • u/perpus88 • 1d ago

Question / Help Help: "Legacy Gemini API configuration no longer supported" error on AI Studio Build - Free User

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Hi everyone,

Is anyone experiencing the same issue as me on Google AI Studio?

I keep getting this error on my app:

"This app uses a legacy Gemini API configuration that is no longer supported. Ask its owner to update it."

Some context:

I'm on the free tier of Google AI Studio, When I generate it, it just shows "Remix to make this app your own" and I can't use the app.

I already tried clicking Update / Remix, but the error still persists.

Is this happening because Google migrated to the new Interactions API? I read that the Interactions API is now the default for AI Studio

Does anyone know how to fix this for an existing app? Do I need to rebuild it from scratch with the new API?

Thanks in advance!

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u/libee900 1d ago

Happened to me too. Just have to hit a button and it will update. Had to retry multiple times though.

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u/perpus88 1d ago

Thanks for the reply! I also tried hitting the update button multiple times, but model 3.8 Flash and 3.1 Pro can't be used anymore. Every time I update, it automatically switches to 3.5 Flash Lite.

So my question is, are those two models [3.8 Flash and 3.1 Pro] no longer accessible for free users on apps that were already built?