Tristan Buckmaster's September 2026 public accusations against OpenAI over authorship credit and potential use of his unpublished Navier-Stokes research inputs in large language models form the core driver of trader sentiment. Buckmaster and Anthropic collaborator Levent Alpöge detailed progress on related fluid equations using tools like Codex, alleging OpenAI rapidly replicated their approach after learning of it and pressured Buckmaster to exclude Alpöge due to his employer during settlement talks. OpenAI and researcher Sébastien Bubeck denied any influence or misconduct, with CEO Sam Altman affirming the team's integrity. No lawsuit has been filed as of mid-October 2026, keeping implied odds low amid typical academic and tech preferences for private resolutions over litigation. Key upcoming catalysts include further public statements, formal complaints, or any court filings before year-end that could alter the market-implied consensus.