AI assistants most often recommend Coincheck for crypto exchanges in 🇯🇵 Japan (日本語), naming it in 100% of the buyer questions we tested, followed by DMM Bitcoin and Bitflyer. We asked an AI model the questions buyers ask about crypto exchanges and tallied which brands it named most — "share of voice" in AI answers, who AI recommends when no human is watching.
| # | Brand | AI share of voice |
|---|---|---|
| 1 | Coincheck | 6/6 (100%) |
| 2 | DMM Bitcoin | 5/6 (83%) |
| 3 | Bitflyer | 4/6 (67%) |
| 4 | Bitbank | 2/6 (33%) |
| 5 | GMOコイン | 2/6 (33%) |
| 6 | GMO Coin | 1/6 (17%) |
| 7 | BitFlyer | 1/6 (17%) |
Method: 6 representative buyer questions via a large language model, 🇯🇵 Japan (日本語). Updated 6/25/2026. A proxy for how AI assistants describe this category.
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