According to Greg Brockman, an investigation into reported OpenAI Codex degradations was highlighted as an excellent and super interesting read, signaling attention on potential model performance issues relevant to AI-focused traders. Source: https://twitter.com/gdb/status/1984707276461261226 The post links directly to an X thread by @thsottiaux that investigates the reported Codex degradations and serves as the primary material for further due diligence. Source: https://x.com/thsottiaux/status/1984465716888944712 The tweet is dated November 1, 2025, and does not include quantitative benchmarks or an official OpenAI statement, limiting immediate trading inferences to the linked investigation itself. Source: https://twitter.com/gdb/status/1984707276461261226 OpenAI Codex is a code generation model publicly introduced in 2021, providing context for why any verified performance changes may be market-relevant. Source: https://openai.com/blog/openai-codex