Second-hand Marketplaces AI Visibility Trends

Second-hand Marketplaces · ChatGPT · AI Index over time

Trend Overview

Second-hand Marketplaces AI visibility trends show how entity AI Index scores have moved across 10 completed public ChatGPT leaderboard snapshots from May 24, 2026 to Jun 26, 2026.

eBay leads the latest ChatGPT snapshot with a 74.4 AI Index and 85.7% mention rate.

The chart currently compares eBay, Vinted, Mercari. 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 Second-hand Marketplaces leaderboard and entity pages: the trend view explains historical movement, while ranking pages show the latest cross-entity position, mention rate, and score gap.

Trend Summary

EntityLatest AI IndexStart AI IndexDeltaMention RateLatest RankBest RankTrend
eBay74.497.1-22.785.7%#1#1Declining
Vinted6770.3-3.371.4%#2#2Stable
Mercari6657.6+8.485.7%#3#2Rising
Poshmark58.669.9-11.371.4%#4#2Declining
Depop55.653.6+271.4%#5#4Stable
StockX44.124+20.114.3%#6#2Rising
Vestiaire Collective42.450.4-828.6%#7#3Declining
Facebook Marketplace33.751.8-18.114.3%#8#6Declining
OfferUp25.740.1-14.414.3%#9#8Declining
Carousell2223.7-1.70%#10#9Stable

Biggest Movers

Biggest gainers

  1. StockX+20.1
  2. Mercari+8.4
  3. Depop+2

Biggest decliners

  1. The RealReal-31.3
  2. eBay-22.7
  3. Facebook Marketplace-18.1

Most stable

  1. Grailed+1
  2. Carousell-1.7
  3. Depop+2

Engine Snapshot Comparison

EngineLatest LeaderLeader AI IndexLeader GapEntitiesSnapshot Date
ChatGPTeBay74.47.415Jun 26, 2026
GeminieBay80.37.319Jun 26, 2026
GrokeBay77.68.620Jun 26, 2026
DeepSeekVestiaire Collective66.47.112Jun 4, 2026
MiniMaxeBay69.49.416Jun 4, 2026
QweneBay85.714.217May 24, 2026
KimieBay85.711.318May 24, 2026

Snapshot History

DateLeaderLeader AI IndexLeader GapTop 3Entities
Jun 26, 2026eBay74.47.4eBay, Vinted, Mercari15
Jun 19, 2026eBay98.638eBay, Poshmark, Vestiaire Collective17
Jun 12, 2026eBay95.735.1eBay, Poshmark, Mercari18
Jun 10, 2026eBay74.914eBay, StockX, Mercari18
Jun 8, 2026eBay95.730.1eBay, Mercari, Vestiaire Collective17

Continue from Here

Open private tracker Second-hand Marketplaces leaderboard eBay entity page Vinted entity page Mercari entity page ChatGPT rankingsGemini rankingsGrok rankingsDeepSeek rankings

ChatGPT ChatGPT· AI Index History

10 data points
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