OpenAI’s Signals release breaks down ChatGPT work use into 165 activities across roughly 100 countries from Q1 2025 through Q3 2026. It covers consumer plans, excluding Enterprise and Codex. Across 74 consistently tracked activities, the top ten’s share fell from 56% to 51.1%, suggesting broader use. The aggregated, privacy-protected data is downloadable under CC BY 4.0. It supports analysis of activity-level trends, but conversation volume does not establish actual output or a causal effect on jobs.