Why it matters: OpenAI is moving ChatGPT from assistant responses into shared agents that run workflows across company tools. The research preview covers 4 plan families: Business, Enterprise, Edu, and Teachers.
OpenAI's current Codex rate card now maps credit usage to input, cached-input, and output tokens instead of relying only on rough per-message estimates. The April 5, 2026 Hacker News thread focused on how that gives teams clearer cost visibility, while also leaving a split world where some plans use the new token-based card and others remain on the legacy message-based card until migration.