Public Industry Leaderboard

Second-hand Marketplaces Grok AI Rankings

Second-hand Marketplaces

Second-hand Marketplaces ranking trend

Current Champion

eBay

AI Index 85.8

Podium Snapshot

#1 eBay · #2 Mercari · #3 Poshmark

Latest Refresh

May 24, 2026

10 tracked engines and 30 entities in the latest public snapshot.

Industry Overview

Second-hand Marketplaces AI brand rankings show which brands are most visible in the current public benchmark. Current leaders include eBay, Mercari, and Poshmark across 10 tracked engines, with score and mention-rate signals combined into the overall AI Index. eBay is 24.9 points ahead of Mercari, so the gap helps show whether this industry has a clear AI visibility leader or a tighter competitive cluster.

Use the engine tabs below to compare how Perplexity, MiniMax, GLM, and Qwen rank entities differently. Overall ranking summarizes the latest visibility signals across all tracked engines, while engine-specific tabs reveal whether a brand is broadly recommended or over-dependent on one answer system.

This Grok rankings page is scoped to Second-hand Marketplaces: it shows how entities appear inside one answer engine using mention rate, recommendation strength, and latest snapshot signals. For model-level Grok rank tracking across industries, use the Grok benchmark hub. Use the private AI rank tracker when you need recurring monitoring for your own prompts, competitors, saved answer history, actions, validation, and report readiness.

Why This Matters

Use the overall ranking to see which brands stand out in this industry benchmark, then drill into individual AI engines to decide which market, competitors, and prompt themes deserve private tracking. The useful signal is not only the rank: mention rate, score gaps, latest refresh date, and engine outliers show where to investigate next.

Current Ranking Takeaways

Mercari is currently #1 in the Second-hand Marketplaces Grok public rankings benchmark, with a 80.3 AI Index and 100% mention rate. Treat this as market context for private prompt and competitor selection.

eBay is the nearest visible challenger on Grok, trailing Mercari by 5.9 points. That gap helps separate engine-specific visibility from broader cross-engine strength.

The Grok benchmark refreshed on May 6, 2026, so it should be read as a public engine snapshot rather than a private recurring tracker run.

Entities

AI Engines

May 24, 2026

Last Updated

Ranking Methodology

How this AI brand leaderboard is calculated

AI Index

The combined visibility score used to sort the default public leaderboard view.

Mention Rate

How often tracked AI engines mention each brand inside completed public runs.

Recommendation Strength

How strongly the answer positions, first mentions, and recommendation signals support each ranking.

Engine Coverage

Compare overall visibility and engine-specific rankings

Second-hand Marketplaces currently compares brands across 10 tracked AI engines, including Perplexity, MiniMax, GLM, Qwen, Grok, and ChatGPT and 4 more. Use the tabs below to separate broad AI visibility from engine-specific outliers.

Perplexity rankings for Second-hand Marketplaces MiniMax rankings for Second-hand Marketplaces GLM rankings for Second-hand Marketplaces Qwen rankings for Second-hand Marketplaces Grok rankings for Second-hand Marketplaces ChatGPT rankings for Second-hand Marketplaces

Next pages to inspect

Follow the Second-hand Marketplaces AI ranking cluster

Top entity visibility profiles

Leaderboard Podium

Open the leading entity pages in this industry leaderboard

Overall Ranking

eBay

85.8

Mercari

60.9

Poshmark

57.2

Grok

Latest collection-scoped AI rankings for Grok.

10 / 10 entities May 6, 2026

Sort

Rank	Entity	AI Index	Mention Rate	Rank Score	Rec. Strength	1st Mention	Mentions
👑 #1	Mercari	80.3	100.0%	86.7%	71.4%	0.0%	7/7
🥈 #2	eBay	74.4	100.0%	43.3%	71.4%	71.4%	7/7
🥉 #3	Poshmark	66.9	100.0%	80.0%	14.3%	0.0%	7/7
#4	Vinted	57.3	85.7%	76.7%	0.0%	0.0%	6/7
#5	Depop	56.3	85.7%	73.3%	0.0%	0.0%	6/7
#6	OfferUp	47.9	57.1%	83.3%	0.0%	0.0%	4/7
#7	Facebook Marketplace	35.7	14.3%	100.0%	0.0%	0.0%	1/7
#8	Vestiaire Collective	34.7	14.3%	30.0%	100.0%	0.0%	1/7
#9	Craigslist	28.0	0.0%	93.3%	0.0%	0.0%	0/7
#10	Carousell	21.0	0.0%	70.0%	0.0%	0.0%	0/7

Next Step

Turn this public industry benchmark into a private AI visibility tracker.

Public rankings are useful for market discovery and benchmark context. Private tracking is where teams monitor owned prompts, direct competitors, citations, answer history, action plans, validation evidence, report readiness, and pricing fit.

Open a private trackerContinue to onboarding with this industry and Grok context preserved.See all Grok rank tracking benchmarksOpen the model-level Grok benchmark hub across industries and categories.Compare tracker plansReview monitoring capacity, prompt limits, projects, and plan fit before moving beyond the public benchmark.Run a free visibility checkCheck one brand as a diagnostic before setting up recurring AI visibility monitoring.Second-hand Marketplaces ranking trendSee how this industry has shifted across recent public leaderboard runs.

FAQ

How is the Second-hand Marketplaces leaderboard calculated?

Overall ranking combines the latest AI visibility signals across tracked engines for Second-hand Marketplaces, including rank position, recommendation strength, and mention-rate patterns.

Why can eBay lead overall but differ by engine?

Each AI engine can prefer different brands, evidence, freshness, and recommendation patterns, so engine-specific rankings can diverge from the combined leaderboard.

How often is this Second-hand Marketplaces leaderboard updated?

This leaderboard updates whenever new completed runs are available for Second-hand Marketplaces, with the latest refresh date shown on the page.