Plan a Hong Kong trip with Gemini, Grok and ChatGPT (some addresses were made up)

Posted

Oct 3, 2026 by @raychenAI

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Last checked

Oct 17, 2026

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Method:

How we verify

Evidence: Described by posterThe person describes what happened in words, without screenshots or video.

Outcome

A traveller planned a Hong Kong trip mainly with Gemini, using Grok and ChatGPT as extras, to organise locations, build itineraries, make packing lists and turn store addresses into Google Maps links. The traveller says routes were logical and personalised, but the AIs sometimes produced convincing addresses that didn't exist, and got names, opening hours or whether shops were still open wrong. Next time they'd verify every important detail on maps and official sites.

Agent

Gemini, Grok, ChatGPT

The source didn't share its exact prompt, so we wrote this from what it describes.

Let's work this out together. I'll tell you what I know, you suggest options and ask what you need, and we'll narrow it down step by step. Nothing gets booked, bought or sent until I say so.

Goal: Let's build a city itinerary around my interests, then check every place actually exists and is open.

What I'll share as we go:
- Dates, hotel location and pace
- Interests and shopping list
- Must-see places

Rules:
- Group places by area so I don't double back.
- For every place, give a map link and check opening hours and that it's still operating, citing the source.
- Mark anything you couldn't verify as 'unverified'.
- Include a packing list for the weather.
- If a site asks for a login, a CAPTCHA or payment details, stop and hand control back to me.
- Ask for my OK before you pay, book, send, submit or cancel anything.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.

Output: A day-by-day plan with verified map links, hours, and a list of unverified items.

You'll know it worked when: every stop in the plan has a working map link and confirmed hours.

Let's work this out together. I'll tell you what I know, you suggest options and ask what you need, and we'll narrow it down step by step. Nothing gets booked, bought or sent until I say so.

Goal: Let's build a city itinerary around my interests, then check every place actually exists and is open.

What I'll share as we go:
- Dates, hotel location and pace
- Interests and shopping list
- Must-see places

Rules:
- Group places by area so I don't double back.
- For every place, give a map link and check opening hours and that it's still operating, citing the source.
- Mark anything you couldn't verify as 'unverified'.
- Include a packing list for the weather.
- If a site asks for a login, a CAPTCHA or payment details, stop and hand control back to me.
- Ask for my OK before you pay, book, send, submit or cancel anything.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.
- Before the trip, re-check every unverified place on official sites or a map app.

Output: A day-by-day plan with verified map links, hours, and a list of unverified items.

You'll know it worked when: every stop in the plan has a working map link and confirmed hours.

Before you finish: re-read my goal and constraints, check your answer against each one, and list anything you assumed or couldn't confirm.

Source

https://x.com/raychenAI/status/2106382000877908214