AI Chat Agents AI visibility trends show how entity AI Index scores have moved across 4 completed public Grok leaderboard snapshots from Jun 19, 2026 to Aug 12, 2026.
ChatGPT leads the latest Grok snapshot with a 93.8 AI Index and 95% mention rate.
ChatGPT is down 0.6 AI Index points across the visible window, moving from 94.5 to 93.8 on Grok.
The chart currently compares Microsoft Copilot. 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 AI Chat Agents leaderboard and entity pages: the trend view explains historical movement, while ranking pages show the latest cross-entity position, mention rate, and score gap.
Microsoft Copilot ranking and static AI visibility queries should use the base entity page. This trend page is for Microsoft Copilot AI visibility trend, ranking history, and movement over time.