Fast Food Chains AI visibility trends show how entity AI Index scores have moved across 10 completed public ChatGPT leaderboard snapshots from May 15, 2026 to Jun 26, 2026.
Taco Bell leads the latest ChatGPT snapshot with a 78.2 AI Index and 85.7% mention rate.
Taco Bell is up 14.2 AI Index points across the visible window, moving from 64 to 78.2 on ChatGPT.
The chart currently compares Taco Bell, McDonald's, Chick-fil-A. 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 Fast Food Chains leaderboard and entity pages: the trend view explains historical movement, while ranking pages show the latest cross-entity position, mention rate, and score gap.