A wine tasting or vineyard visit this weekend, book for two.
What ChatGPT, Claude and Gemini answered when asked this in Tokyo tours, attractions and museums on 2026-10-26, with web search on. Below are the places named, who named each one, and the direct link where the place has one.
| Place | Named by | Direct link |
|---|---|---|
| Château Mercian Katsunuma Winery not in the index | Claude with its own site Gemini with its own site | chateaumercian.com |
| Marufuji Winery not in the index | Gemini with its own site | porta-y.jp |
| Suntory Tomi no Oka Winery not in the index | Gemini with its own site | suntory.co.jp |
| TOKYO WINE PARTY not in the index | ChatGPT with its own site | enjoywine.jp |
| Tomioka Winery Harvest Festival not in the index | ChatGPT with its own site | tomioka-winery.jp |
| Marufuji Winery not in the index | Claude by name | no link given |
| Tokyo Winery not in the index | Claude by name | no link given |
How this is read
Each assistant was asked each question once, with web search on, for up to three places and the link to each one's own website. Names are read from the answer and matched against the index. Any link between one name and the next belongs to that place. "With its own site" means the assistant linked the place's own website. "Through a marketplace" or "a directory" means it linked a listing instead, and "by name" means it gave no link. The direct links come from the Direct Index's own scan of the place's site. The assistant didn't supply them.
Every question for Tokyo tours, attractions and museums · Where assistants send people in Tokyo tours, attractions and museums.