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    Underdog creator says the AI operating system runs 100% locally

    The creator says privacy fears drove the project, including a claim that anyone can get a friend's real Social Security number from Claude.

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    17 Sources, ,

    TLDR

    Underdog's creator says they built the on-device AI operating system for themselves, describing it as “100% local.” They cite fears about personal data in training sets and distrust of cloud services, and claim anyone can get a friend's real Social Security number from Claude. The creator says their friends now love Underdog.

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    431.2K

    17 Sources, first seen 18d ago

    Combined views

    431.2K

    17 Sources, first seen 18d ago

    1.3K likes
    18d ago
    first seen 18d ago
    1.3K likes
    205 comments
    1.2K saves
    245 reposts

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    205 comments
    1.2K saves
    245 reposts

    Sentiment

    Positive——Negative

    Summary

    Not enough discussion yet.

    No sentiment analysis available yet.

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    17 Sources

    @0xSigilAnyone can get my friend’s real SSN from Claude I'm Terrified of my data in training sets. Emails in databases. iMessages harvested. Cant trust the cloud as AI is crazy good at hacking So I built Underdog for myself: on-device AI OS. Capable & 100% local. now my friends love it
    @joshelmanThis is a really impressive platform that runs all on device. Pushing the powerful limits of what Macs can do. Soooo cool @0xSigil
    @bubbleboiA real solution to agent swarms that can lose control is this. Really smart on sigil for coming up with this, im sure it will do well.
    @Thom_WolfInteresting new on-device local AI agentic system - seems to be running an open-weights 4B model quantized to 4 bits (MLX)
    @MascobotI have been testing Underdog for the last few days with my email, and this is pretty neat. This is like the first AI email app that has a lot built in out of the box, and it's all local:
    @abdullababakrehugging face accident is so underrated. humans for the first time faced something more smarter than them Local/on-device is a very great solution.
    @alexocheemaModel-App co-design for local personal agent 🔥
    @swyxRT @0xSigil: Anyone can get my friend’s real SSN from Claude I'm Terrified of my data in training sets. Emails in databases. iMessages har…
    @CCgongJust onboarded to Underdog and immediately unsubscribed from all my AI assistants/ notetakers. It’s all on device ai and fully private 🤯 Have a few invites. Dm me

    17 Sources

    @0xSigilAnyone can get my friend’s real SSN from Claude I'm Terrified of my data in training sets. Emails in databases. iMessages harvested. Cant trust the cloud as AI is crazy good at hacking So I built Underdog for myself: on-device AI OS. Capable & 100% local. now my friends love it
    @joshelmanThis is a really impressive platform that runs all on device. Pushing the powerful limits of what Macs can do. Soooo cool @0xSigil
    @bubbleboiA real solution to agent swarms that can lose control is this. Really smart on sigil for coming up with this, im sure it will do well.
    @Thom_WolfInteresting new on-device local AI agentic system - seems to be running an open-weights 4B model quantized to 4 bits (MLX)
    @MascobotI have been testing Underdog for the last few days with my email, and this is pretty neat. This is like the first AI email app that has a lot built in out of the box, and it's all local:
    @abdullababakrehugging face accident is so underrated. humans for the first time faced something more smarter than them Local/on-device is a very great solution.
    @alexocheemaModel-App co-design for local personal agent 🔥
    @swyxRT @0xSigil: Anyone can get my friend’s real SSN from Claude I'm Terrified of my data in training sets. Emails in databases. iMessages har…
    @CCgongJust onboarded to Underdog and immediately unsubscribed from all my AI assistants/ notetakers. It’s all on device ai and fully private 🤯 Have a few invites. Dm me