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Blok is using AI personas to simulate real-world app usage


AI-powered coding tools like Cursor, Replit, Claude Code, and Lovable are helping developers write many lines of code every day to ship products faster.

Its seed round of $5 million was led by MaC Venture Capital, with participation from people working at Discord, Google, Meta, Apple, Snapchat, and Pinterest. Blok’s simulation engine flips that model — giving teams the ability to predict user behavior before a single line of code is written,” he told TechCrunch over email. Blok has put its product behind a waitlist and is working with an initial set of customers, largely developing solutions in finance and healthcare.

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