Which laundry brands do AI assistants recommend in Japan? Q4 2026
In Japan, AI assistants most often recommend Attack, Ariel and Lenor for laundry. Attack is named by 4 of 5 assistants.
What the data says
Attack (Kao) is the laundry brand AI assistants recommend most in Japan, taking 11.1% of all recommendation points across 5 assistants. Ariel follows with 9.3% and Lenor is third with 7.7%.
The top spot is close: only 1.8 points separate Attack and Ariel, so a small change in how either brand is described online could flip the order.
ChatGPT, Gemini and Grok put Attack first, while Claude favours Downy and DeepSeek favours Kao.
The top five brands hold 43% of recommendations out of 31 brands named in total, leaving room for challengers to break into AI shortlists.
| # | Brand | Owner | AI share | ChatGPT | Claude | DeepSeek | Gemini | Grok |
|---|---|---|---|---|---|---|---|---|
| 1 | Attack | Kao | 11.1% | 60 | – | 12 | 35 | 60 |
| 2 | Ariel | Procter & Gamble | 9.3% | 37 | 25 | 8 | 25 | 45 |
| 3 | Lenor | Procter & Gamble | 7.7% | 35 | 20 | – | 25 | 35 |
| 4 | Lion | Lion | 7.4% | – | – | 75 | – | 36 |
| 5 | Kao | Kao | 7% | – | – | 105 | – | – |
| 6 | Downy | Procter & Gamble | 6.1% | 12 | 35 | 20 | – | 25 |
| 7 | Vanish | Reckitt | 6% | – | 35 | 20 | – | 35 |
| 8 | Soflan | Lion | 4.3% | 25 | – | – | 20 | 20 |
| 9 | OxiClean | Church & Dwight | 3.8% | 20 | 25 | 12 | – | – |
| 10 | Top | Lion | 3.7% | 55 | – | – | – | – |
| 11 | Flair | Kao | 3.7% | 20 | – | – | 35 | – |
| 12 | Comfort | Unilever | 3.5% | 8 | 25 | 12 | – | 8 |
| 13 | Tide | Procter & Gamble | 2.7% | – | 20 | – | – | 20 |
| 14 | Pigeon | Pigeon | 2.4% | – | – | 36 | – | – |
| 15 | Utamaro Soap | Toyo Senko | 2.3% | – | – | – | 35 | – |
| 16 | OMO | Unilever | 2.3% | – | 35 | – | – | – |
| 17 | Bold | Procter & Gamble | 2.1% | 12 | – | – | 12 | 8 |
| 18 | Nanox | Lion | 1.9% | 8 | – | – | 20 | – |
| 19 | Wide Haiter | Kao | 1.7% | – | – | – | 25 | – |
| 20 | Japanese | Generic | 1.6% | – | 24 | – | – | – |
Questions about AI laundry recommendations
- Which laundry brand does ChatGPT recommend most in Japan?
- ChatGPT recommends Attack most often for laundry in Japan. Across all assistants, Attack leads with 11.1% of recommendations.
- Which laundry brand is improving fastest in Japan?
- Kao has the strongest momentum among challengers: AI names it first in 3 of 3 answers where it appears, while holding 7% share. This is the first Q4 2026 reading; change over time will be shown from the next update.
- How is the ranking calculated?
- We ask each AI assistant the questions shoppers ask in each category and market, record the top five brands it names, and give 35, 25, 20, 12 and 8 points for positions one to five. Share is a brand's points divided by all points awarded.
Laundry: AI rankings by country
Covers: Detergent, Softener, Stain Removers.
Method: each AI assistant is asked the shopper questions for every segment in the category and market; the top five brands named score 35, 25, 20, 12 and 8 points. Share is a brand's points divided by all points awarded. Rankings reflect AI answers, not sales.
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