On October 23, Anthony Morris, creator of Claude Code’s desktop client, announced on X that he was leaving Anthropic, and core engineer Thariq Shihipar followed the next day; on November 3, product lead Cat Wu confirmed that October 30 had been her last day, and on November 4 she said she was joining OpenAI to lead product management for its core product team, meaning the founding team of Claude Code lost at least four core members in less than two weeks. In the same window, Anthropic filed its S-1 with the SEC, reporting revenue in the first half of 2026 of $16.29 billion, fourteen times the same period a year earlier, with valuation expectations ranging from $1.5 trillion to $2 trillion and a plan to list on Nasdaq in November; the risk factors section said the company might “soon” meet its Responsible Scaling Policy’s definition of “AI-driven dramatic acceleration of progress,” the threshold for recursive self-improvement, while the next sentence said no current model had exceeded that threshold and that the company was committed to maintaining meaningful human oversight and control over frontier model R&D for the foreseeable future. Wu, who was among the first users of Boris Cherny’s early Claude Code prototype and was called part of the project’s “Batman and Robin” with him, wrote that she had once let Claude Code run for more than ten hours to build a reinforcement learning environment “without writing a single line