Google denies training Gemini with private documents after discovered data leak

An independent game developer discovered that Gemini returned information about an undisclosed character called "Vantage Tripod" that existed only in a private Google Docs document. The company denied using private documents to train its models, stating that Gemini only accesses Workspace files when requested by the user. The incident raises questions about how the model obtained access to information never published publicly, with the true cause still under investigation.