What Codex unlocks for Notion

Notion built its AI Voice Input feature with a single engineer in about 3 to 4 hours using OpenAI's Codex coding agent, according to a new OpenAI customer story. Ryan Nystrom, who leads AI Product Engineering at Notion, pointed Codex at an existing mobile version of the feature and had the agent recreate it for Notion's web and desktop apps in close to one pass. The case study positions Codex as a way for small teams to ship production features at the pace of much larger ones.