Error: "Gemini Live session closed: Precondition check failed."

Getting this error when using the “gemini-2.5-flash-preview-native-audio-dialog” model:
“Gemini Live session closed: Precondition check failed.”

Relevant details:

  • Error happening with no changes on our end (code, environment, etc.)
  • Happens every time a session is initiated
  • Doesn’t occur with the half-cascade gemini flash live model

Has anyone else had this issue happen before? This started happening all of a sudden and I couldn’t find anything online about it.

Hello,

Could you please confirm if you’re facing this issue with Gemini API or Gemini Studio or both?