Post #6374

❗️Borrowed models, billion-dollar valuations and a licensing fight blowing up in public. Is this what the AI boom looks like at the top? Cursor, an early player in the AI coding IDE wave out of Y Combinator, just launched its new model, Composer 2, positioning it as a major step forward in dev tooling. The timing is notable. Just days earlier, the company closed a round at a ~$50B valuation, with backing from Google and Coatue. Revenue momentum is equally aggressive: ARR reportedly jumped from $1B to $2B in a single quarter. Then things got messy. Moonshot AI, the team behind the open-source Kimi K2.5 model, publicly accused Cursor of building on top of their work without proper attribution. Their license is simple: • Free to use and modify • But once you scale past $20M/month or 100M MAU, you must visibly credit “Kimi K2.5” According to Moonshot, that didn’t happen. The implication: Composer 2 may not be as “from-scratch” as it was presented but rather a refined wrapper around an existing open model. The debate quickly escalated across tech Twitter, pulling in voices like Elon Musk and turning into a broader conversation about attribution, open-source norms, and startup ethics in AI. And the numbers tell their own story: • $4.3B valuation for the original model creator • $50B valuation for the company packaging and distributing it In this cycle, owning the interface not the invention might be the real moat. @aipost🏴