Even after recharging, the “undefined AI Credits” message remains.
If you are considering purchasing a plan to use a model like Gemini 3.1 Pro, do not proceed with the purchase—it will not work.
EDIT
JUST IGNORE THE DISABLED SEND BUTTON
IF YOU BUY THE AI CREDIT OR REAMIN THE AI CREADIT
JUST PRESS ENTER. IT WILL WORKS
THANKS TO @Hothi_Akhil Credits Available as Additional Credits but not detected on Antigravity