On our Halloween episode, Episode 19 (October 31, 2025), Jordan built a Guess My Costume app live in Google AI Studio. It turns on your webcam, looks at you, and uses Gemini to guess what you're dressed as. From prompt to a correct guess took about a minute and a half of airtime. It's a quick demo, so this page is short.
AI Studio's Build mode was our tool of the week. We had covered it as news the week before and had both used it since. Sam asked Jordan at 05:43 to show what makes it different. Jordan's answer: we've tried Bolt, Lovable, v0, Replit and others, and Google's version has Gemini already built in. A costume guesser was the obvious Halloween test.
It uses the webcam. It uses Gemini.
— Jordan Metzner, Episode 19
It got it right: vampire. The response leaned into the theme, opening with "The spirits have spoken," then calling out his teeth, his silver wig and his "magnificent ruffled shirt" as "the classic elegance of a vampire." AI Studio also styled the app for Halloween without being asked.
Nothing broke, so the lesson is about why it was this fast. At 13:30, Sam asked whether AI Studio is really better than other vibe-coding tools or just similar with nicer suggestions. Jordan called it a step-function improvement:
Oh, no. There's a step function improvement here, and the step function improvement is that Gemini is already integrated.
— Jordan Metzner, Episode 19
In Bolt or Lovable, adding AI to an app means building a back end to call an API, choosing which API, getting a key and handing it to the tool. Here, the image recognition just worked. If we took it further, we'd add the difficulty setting and timer AI Studio suggested and turn it into a party game.
Earlier in the same episode Jordan showed a bigger AI Studio build, Mirror, Mirror on the Wall, a talking mirror. Right after this demo, Sam asked for something more practical, and Jordan built a Trick-or-Treat route planner. If you're choosing between tools, see Google AI Studio vs Lovable.
Jordan typed one prompt into Google AI Studio's Build mode: a guess-my-costume app that uses the webcam to guess what you're dressed as. He hit build, and the app used Gemini to look at the camera and describe the costume.
It recognized Jordan's vampire costume (fake teeth, silver wig, ruffled shirt) on the first try and wrote a Halloween-themed description of it.
Google's vibe-coding tool, at ai.studio/build. You prompt an idea and it builds the app, with Gemini already integrated. It also offers a library of starter ideas such as Nano Banana apps and conversational voice apps.
