Monthly diff

What changed in AI search, May 2026.

Each month the mapou Visibility Index runs the same canonical prompt set across all 5 AI engines and publishes refreshed scores. This page documents what changed: new segments added to the panel, brand panels expanded, biggest movers per category, and the brands that just entered the tracked set. Auto-generated from the 56 run snapshots in the archive.

Panel growth this month.

New segments added

athleisure men's fashion women's fashion laptops audio brands smart home brands TV brands P&C insurers

Brand panels expanded to 20

Existing segments brought up to 20+ tracked brands each. New entries sourced from emerging-brand mentions where AI engines were already citing the brand at threshold (3 prompts × 2 engines).

Total panel size

500

Brands across 25 competitive segments. 50,000 verdicts per monthly canonical run.

Biggest movers up.

Brands whose MVI score increased most between consecutive canonical runs in our archive. Threshold: at least +5 MVI delta.

Brand	Segment	Was	Now	Δ	Tier
Mercedes-Benz	luxury and EV brands	50	68	+18	Stage 2
Porsche	luxury and EV brands	51	69	+18	Stage 2
Tesla	luxury and EV brands	60	77	+17	Stage 3
BMW	luxury and EV brands	60	77	+17	Stage 3
Briogeo	haircare	21	37	+16	Stage 1
Hyatt	hotels	29	44	+15	Stage 1
Kia	mainstream auto brands	35	50	+15	Stage 2
CeraVe	skincare	53	68	+15	Stage 2
Hyundai	mainstream auto brands	52	66	+14	Stage 2
Tom Ford	fragrance	33	46	+13	Stage 1

Biggest movers down.

Brands whose MVI score dropped most between consecutive canonical runs. Threshold: at least 5 MVI delta down.

Brand	Segment	Was	Now	Δ	Tier
Expedia	online travel agencies	77	52	-25	Stage 2
Booking.com	online travel agencies	78	56	-22	Stage 2
Charles Schwab	investing platforms	64	43	-21	Stage 1
Capital One	credit cards	74	55	-19	Stage 2
Vanguard	investing platforms	56	37	-19	Stage 1
Citi	credit cards	48	30	-18	Stage 1
Fidelity	investing platforms	77	59	-18	Stage 2
Lululemon	athleisure	77	59	-18	Stage 2
Betterment	investing platforms	47	31	-16	Stage 1
Chase	credit cards	92	77	-15	Stage 3

New on the panel this month.

Brands measured for the first time this month. Either part of an entirely new segment or added to an expanded panel. Sorted by first-month MVI.

Brand	Segment	MVI	Tier
LG	home appliances	84	Stage 3
State Farm	P&C insurers	81	Stage 3
Verizon	residential telecom	78	Stage 3
Bosch	home appliances	77	Stage 3
T-Mobile	residential telecom	76	Stage 3
Everlane	women's fashion	75	Stage 3
AT&T	residential telecom	74	Stage 2
Samsung	home appliances	73	Stage 2
Lenovo	laptops	72	Stage 2
RingCentral	business telecom	72	Stage 2
Chase Sapphire	credit cards	71	Stage 2
Progressive	P&C insurers	69	Stage 2

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