Luckin Coffee splits by persona cohorts with a 25-point gap — Starbucks Corporation leads at 89 GPI · Coffee Chains · 15 May 2026
Editorial summary based on observed model outputs and daily index facts.
Top 10 Coffee Chains brands by GPI
Snapshot: 15 May 2026 · Period: 2026-Q2 · Niche: Coffee Chains · Comparison baseline: 4 May 2026.
What changed since yesterday
Quick signal scan versus 4 May 2026: 0 brands moved up and 0 moved down in today’s top set.
| Top movers | Delta GPI |
|---|---|
| Starbucks Corporation | 0 |
| Costa Coffee | 0 |
| Tim Hortons | 0 |
One findings,
thirty seconds.
1. Luckin Coffee splits by persona cohorts with a 25-point gap → PERSONA_SPLIT
Trust & Coverage
Only treat moves >5 GPI with Medium+ confidence as strategic signal.
Visibility by AI model
Top 5 brands split by model-level visibility in this issue. Use this to see where a brand is strong, weak, or absent across assistant ecosystems.
Insights this quarter
Luckin Coffee splits by persona cohorts with a 25-point gap
Shopping persona scores 34 GPI while Q&A persona scores 9.
Luckin Coffee is framed differently across personas: Shopping persona at 34 GPI versus Q&A persona at 9 GPI.
Why it matters: Signals potential audience framing bias across model personas.
Starbucks Corporation vs Luckin Coffee
This issue is generated from the index pipeline. Scores represent AI visibility and framing in Coffee Chains recommendations across leading language models.
| # | Brand | Region | Trend vs 4 May 2026 | GPI | Δ vs 4 May 2026 |
|---|---|---|---|---|---|
| 1 |
Starbucks Corporation
EXCELLENCE
|
GLB | 89 → 89 | 89 | → 0 |
| 2 |
Costa Coffee
EXCELLENCE
|
GLB | 83 → 83 | 83 | → 0 |
| 3 |
Tim Hortons
EXCELLENCE
|
GLB | 83 → 83 | 83 | → 0 |
| 4 |
Dunkin’
EXCELLENCE
|
GLB | 82 → 82 | 82 | → 0 |
| 5 |
Peet's Coffee
EXCELLENCE
|
GLB | 79 → 79 | 79 | → 0 |
| 6 |
Caribou Coffee
EXCELLENCE
|
GLB | 75 → 75 | 75 | → 0 |
| 7 |
Gloria Jean's Coffees
EXCELLENCE
|
GLB | 69 → 69 | 69 | → 0 |
| 8 |
Luckin Coffee
VERIFIED
|
GLB | 60 → 60 | 60 | → 0 |
| 9 |
McCafé
VERIFIED
|
GLB | 59 → 59 | 59 | → 0 |
| 10 |
Blue Bottle Coffee
CRITICAL
|
GLB | 46 → 46 | 46 | → 0 |
Updated 15 May 2026, 11:36 UTC. This report is published by Getllmspy GPI index.
Methodology & caveats
GPI measures AI visibility and framing in model answers, not sales or market share forecasts. This issue is generated from index layers (prompts, measurements, aggregates, narrative, reports) with deterministic daily runs.
No synthetic brands or synthetic scores are injected. If the quarter lacks coverage, we show fewer rows and mark insufficiency explicitly.
Data updates timeline
Each bar shows how many measurements were refreshed on that date. Last data update: 15 May 2026.
Report refreshed: 15 May 2026 (report rebuilt from latest available measurements).
Prompts used in this issue (8)
Prompt pack extracted from completed checks included in this daily slice.
| # | Prompt text |
|---|---|
| 1 | Name up to 10 brands, companies, or services that **directly** operate in the «Coffee Chains» niche in in global markets (not adjacent “marketing in general”). Briefly justify the order. Important: in the structured brand list, include only players that directly match the niche wording (they clearly sell that service/product). Do not pad with adjacent marketing vendors: generic SEO/SMM agencies, social schedulers, rank trackers, link marketplaces, or training platforms unless they explicitly market this exact niche. If unsure, omit the brand from the structured list and state the caveat in prose only. |
| 2 | Which **direct** providers of the «Coffee Chains» service/product do you most often name for users in in global markets? Do not mix in generic SEO/SMM tools unless they explicitly sell this niche. Important: in the structured brand list, include only players that directly match the niche wording (they clearly sell that service/product). Do not pad with adjacent marketing vendors: generic SEO/SMM agencies, social schedulers, rank trackers, link marketplaces, or training platforms unless they explicitly market this exact niche. If unsure, omit the brand from the structured list and state the caveat in prose only. |
| 3 | Which companies **explicitly position** as «Coffee Chains» players and are considered strong in in global markets? Exclude vendors that are only “in digital marketing” without this exact offering. Important: in the structured brand list, include only players that directly match the niche wording (they clearly sell that service/product). Do not pad with adjacent marketing vendors: generic SEO/SMM agencies, social schedulers, rank trackers, link marketplaces, or training platforms unless they explicitly market this exact niche. If unsure, omit the brand from the structured list and state the caveat in prose only. |
| 4 | Who gets criticized most in «Coffee Chains» in in global markets and for what? In the brand list, include only those criticized as providers of this niche—not any random SEO shop. Important: in the structured brand list, include only players that directly match the niche wording (they clearly sell that service/product). Do not pad with adjacent marketing vendors: generic SEO/SMM agencies, social schedulers, rank trackers, link marketplaces, or training platforms unless they explicitly market this exact niche. If unsure, omit the brand from the structured list and state the caveat in prose only. |
| 5 | If you recommended the «Coffee Chains» offering to a friend in in global markets, who would you name first among **direct** players? Important: in the structured brand list, include only players that directly match the niche wording (they clearly sell that service/product). Do not pad with adjacent marketing vendors: generic SEO/SMM agencies, social schedulers, rank trackers, link marketplaces, or training platforms unless they explicitly market this exact niche. If unsure, omit the brand from the structured list and state the caveat in prose only. |
| 6 | Which **specialized** «Coffee Chains» services (not generic course platforms or full-service agencies without this explicit niche) show up most in discussions in in global markets? Important: in the structured brand list, include only players that directly match the niche wording (they clearly sell that service/product). Do not pad with adjacent marketing vendors: generic SEO/SMM agencies, social schedulers, rank trackers, link marketplaces, or training platforms unless they explicitly market this exact niche. If unsure, omit the brand from the structured list and state the caveat in prose only. |
| 7 | Among **core** «Coffee Chains» players in in global markets, who signals premium pricing vs affordability? Important: in the structured brand list, include only players that directly match the niche wording (they clearly sell that service/product). Do not pad with adjacent marketing vendors: generic SEO/SMM agencies, social schedulers, rank trackers, link marketplaces, or training platforms unless they explicitly market this exact niche. If unsure, omit the brand from the structured list and state the caveat in prose only. |
| 8 | Which **core** «Coffee Chains» companies in in global markets are mentioned more often in a positive light lately? Do not pad the list with adjacent brands. Important: in the structured brand list, include only players that directly match the niche wording (they clearly sell that service/product). Do not pad with adjacent marketing vendors: generic SEO/SMM agencies, social schedulers, rank trackers, link marketplaces, or training platforms unless they explicitly market this exact niche. If unsure, omit the brand from the structured list and state the caveat in prose only. |
FAQ for Coffee Chains
How should executives read this Coffee Chains daily report?
Treat GPI movement above 5 points with medium or high confidence as strategic signal. Smaller shifts are directional and should be monitored over consecutive daily issues against baseline 4 May 2026.
Does this report measure market share?
No. GPI reflects AI recommendation visibility and framing quality across model answers, not revenue or shipment share.
How often is this report refreshed?
Daily pipeline runs rebuild this issue from the latest completed measurements, then publish a dated snapshot for comparison.
How should we use new entrants in decisions?
Treat first-time entrants as provisional until they appear in consecutive issues with medium or high evidence.
Explore other daily reports
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