OpenAI internal meme: Are you mainlining Codex yet?

lennysan · x · 2026-08-31

This post reveals a key internal meme at OpenAI: "Are you mainlining it yet?" This concept asks whether the team is using their own product (like Codex) all day, every day, and depending on it. It serves as both a testing method and a core cultural tenet, emphasizing the importance of actual usage and dependence on the product. The post also mentions WorkOS's launch of Atlas, an AI coworker.

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