What we know so far: After a player asked Google's AI about unreleased content in his game, an indie developer says it returned a character name that existed only in a private Google Doc. Klub Kofta Studio, the solo developer behind the tower defense game Operation Octo, said the character, called Vantage Tripod, had not been announced or shared with anyone.
The issue began in the game's Discord server, where a player was asking Google's AI questions about Operation Octo. The answers sometimes included details the developer considered unusually specific for a small game.
The developer then asked the player to try questions about content that had not been revealed. Google's AI returned the name Vantage Tripod, according to a Reddit post by Klub Kofta Studio.
"Somehow, the AI spitted out the exact & highly specific character name 'Vantage Tripod', which I had never mentioned to anyone," the developer wrote. "As far as I know, the only place where the info exists in a digital form is inside one of my own Google Docs, and this was NOT me speaking to the AI!"
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Operation Octo was released on Steam in September 2025. The developer said the game's limited online presence made the answer more alarming, not less.
"My game is not big enough for there to be much noise out there to confuse Google's AI, so I guess that's why it managed to give actual, scarily real leaks on my game (without being confused by online speculations), and I have no idea how it knew all this," the developer wrote.
The developer later told Polygon that the character name was not included in the game's code, files, or Steam data.
Google said it does not use private Workspace material, including Drive files and Docs, to train its foundational AI models, including Gemini. The company said publicly shared documents can be indexed if links appear online where search crawlers can find them. It also pointed to Google Drive's sharing controls, which let users decide who can access individual files.
– Klub Kofta Studio (@KlubKofta) August 5, 2026
The available evidence does not establish how Google's AI produced the character name. It could not be independently recreated after the Reddit post circulated. The developer said that later searches began returning the name while citing the Reddit post as the source.
"I'd like to say that my specific case is no longer replicable, and the AI would simply give the name 'Vantage Tripod' then point to the Reddit post as source now," the developer said.
That makes it harder to separate the original response from what the AI can now retrieve from the public web. Once a claim appears in a widely shared post, AI search products can cite that post back to users, even if the original answer remains unexplained.
Google's AI Overviews have increasingly used Reddit material in search results. That can be useful when users are looking for firsthand discussion, but it can also create problems when posts contain rumors, jokes, or unsupported claims.
AI-generated search answers can also be manipulated. A YouTuber last year persuaded Google's AI search to repeat a false claim that Grand Theft Auto 6 would have a "twerk button."
For developers, the case is a reminder that unreleased project information can be difficult to contain once it reaches a public AI answer or online discussion. It also raises a basic question for AI search systems: when a response includes obscure information, users need a clear way to know whether it came from a reliable source, a public document, or the model itself.