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Flutter is recreating the magic of seeing someone in real-life for the first time, on your phone. Flutter lets you record short, ephemeral videos to express yourself and capture the attention of potential matches nearby. Users browse through nearby videos and, just like Tinder, like or pass on each one before moving on to the next. Here’s the catch: to actually match with someone, you have to be on the app at the same time and look into each other’s eyes for 15 seconds to see if there’s a spark. We help users play this game by sending push notifications when people they like are online. Video is so powerful. We've seen this with YouTube, Snapchat, Meerkat. And 15 seconds of live, two-way video can tell you so much more about a person than hand-picked photos and bios.

At Undermind, we're building a search engine that can handle extremely complex questions. It’s geared at experts, like research scientists and doctors, who need to find very specific resources to solve high-stakes problems. We’ve rebuilt search from the ground up to address this. Our new approach employs high-quality LLMs to adaptively explore a database, mimicking how a human researcher carefully discovers information. This approach dramatically outperforms (by 10-50x) traditional keyword search and other modern AI-based retrieval methods. Our first target users are the 50 million researchers searching for scientific literature on PubMed and Google Scholar every month. We’ve have paying users across fields like medicine, ML, biotech, finance, and more.