Professional Services AI visibility trends show how entity AI Index scores have moved across 3 completed public ChatGPT leaderboard snapshots from Jun 22, 2026 to Aug 13, 2026.
Deloitte leads the latest ChatGPT snapshot with a 94 AI Index and 100% mention rate.
Deloitte is up 64 AI Index points across the visible window, moving from 30 to 94 on ChatGPT.
The chart currently compares Aon. Use the entity filters to separate durable visibility trends from one-off ranking movement in a single AI engine.
Read this trend alongside the main Professional Services leaderboard and entity pages: the trend view explains historical movement, while ranking pages show the latest cross-entity position, mention rate, and score gap.
Aon ranking and static AI visibility queries should use the base entity page. This trend page is for Aon AI visibility trend, ranking history, and movement over time.
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