VCs, Superhuman Mail founder share red flags about product-market fit |

Product-market fit — when a startup’s product sells well — has become even harder to find in this AI era. Despite startups achieving record-fast growth,…

Superhuman acquires YC-backed notetaker Fathom as productivity platforms push for agentic work |

Superhuman is joining the cadre of productivity platforms launching notetakers — but rather than building one internally, it is acquiring Y Combinator-backed Fathom. AI-powered productivity…

Superhuman acquires AI detection startup GPTZero |

In Brief Posted: 2:48 PM PDT · June 23, 2026 GPTZero, the three-year-old AI detection startup that Princeton grad Edward Tian first built as a…