AI trip planners are genuinely useful — for some things. Planning an accurate day on foot isn't one of them, and the reasons are specific and predictable. Here's where they break, and a free way to get a real route instead.
What AI is actually good at
Credit where it's due. A chatbot is a fantastic brainstorming partner. "What's this neighborhood known for?" "Give me a rough shape for three days in Lisbon." "Rewrite my list of places into a day plan." For ideas, framing, and a first sketch, it's faster than any guidebook.
The problem starts the moment you trust that sketch as a plan and start walking.
Where AI trip planners fall down
1. It invents places — and says them with total confidence
A language model predicts plausible-sounding text; unless it looks things up, it isn't reading from a verified database. So you get real-sounding restaurants that don't exist, addresses that are slightly off, and opening hours it simply made up. This is called hallucination, and in travel it isn't a minor bug: you build half a day around a place, walk twenty minutes to get there, and find a shuttered storefront. The more confident the chatbot sounds, the more places you have to quietly fact-check.
2. You get a wall of text, not a map
A walking day is a spatial problem — it's about where things are relative to each other. A chatbot mostly hands you a numbered list. ChatGPT's phone apps may show a map for local search results, but that isn't a day plan laid out stop by stop. To find out whether that order makes any sense on the ground, you still have to drop every single pin into a map yourself.
3. It doesn't think about geography
AI tends to list places by fame or theme, not by location. So Day 1 sends you from the harbor to a temple across town and back to a market two streets from where you started — an hour of the day spent on backtracking instead of sights. A good walking plan keeps each day inside one area; a chatbot answering from memory has no reliable sense of walking distance.
4. There's nothing to edit, share, or take with you
The answer is a one-shot blob of text. Want to swap two stops, move one to Day 2, share the plan with the person you're travelling with, or open it offline on the trip when your data drops out? You're back to copying text into another app and rebuilding it by hand.
5. It doesn't know what changed last week
Places close, hours shift, a street gets dug up. Chatbots can now look things up — ChatGPT and Claude can search the web, and Google says Gemini pulls live place information from Google Maps — but only when they actually check. An answer written from training data alone has no idea what changed, and won't always tell you it doesn't know.
How to check an AI-made walking itinerary in 10 minutes
If you already have a plan from a chatbot, you don't have to throw it away. Run it through these checks before you walk it:
- Confirm every place exists. Search each name on its official site or a map app and look for a "permanently closed" label. Anything you can't find, delete.
- Put all the stops on one map. Drop them as pins in Google Maps, Apple Maps or a planner. Days that zigzag across the map are days you'll spend walking between sights, not seeing them.
- Re-group by area. Move stops so each day stays in one or two neighboring districts, and put the far-flung ones together on a day you'll use transit.
- Check opening days and times. Many museums close one day a week, and markets and temples keep their own hours. Check the official page for the dates you'll be there.
- Count stops, not just kilometres. Four to six real stops is a full day for most people; see how far to walk in a day for pacing.
- Keep a copy you can open without data. A screenshot, PDF or map list you can reach offline beats a chat you can't reload on the street.
A prompt that gets a better first draft
If you do want a chatbot's help, ask for the things that make a walking plan checkable. This prompt won't stop it inventing places, but it makes the mistakes easier to spot:
Plan 3 days in [city] on foot. Group each day around one or two neighbouring districts. For every stop give the official name, the district and a link to its official website. Put no more than five stops in a day. Mark anything you're not sure still exists or is open, and don't add restaurants unless I ask.
Then run the checklist above, or skip the clean-up and use a planner that starts from real places.
The honest comparison
| What you need on foot | AI chatbot (ChatGPT / Gemini / Claude) | A walking-route planner (CityWalk Plan) |
|---|---|---|
| Real, verified places | Can invent them | Hand-curated, with real coordinates |
| A map you can see | Mostly text | Day-by-day route on an interactive map |
| Sensible order | By fame, not by location | Grouped by neighborhood, less backtracking |
| Edit · share · export | Copy-paste by hand | Reorder, share a link, export offline |
| Effort to get one | Prompt, re-prompt, fact-check | Pick a city → done |
Comparing walking apps rather than chatbots? See the side-by-side comparison of CityWalk Plan, GPSmyCity, VoiceMap and Wanderlog.
The lazy-but-accurate middle ground
This is the gap a catalog-based planner fills. Instead of generating an itinerary word by word, it assembles one from a hand-maintained list of real places. CityWalk Plan is built for exactly this: pick a city, the number of days, and a pace, and it returns a day-by-day walking route of real, verified spots — with real map coordinates, no AI-invented stops — grouped by neighborhood so you don't double back. You see it on a map, reorder it, share it, and export an offline copy for the trip. Free, no sign-up, no prompt-wrangling.
Call it the lazy way to plan a city walk. It just won't send you somewhere that closed two years ago.
Or — use both
If you like working inside a chat, you don't have to choose. CityWalk Plan is available as an MCP tool, so Claude, or ChatGPT on eligible plans, can call it and hand you a route built from the real catalog — the chatbot's ease, the planner's accuracy, in the same conversation. The AI does the talking; the catalog does the facts.
Sources and checking notes
Chatbot features: OpenAI's Searching the web with ChatGPT (web search on all plans, maps for local results on iOS and Android); Anthropic's Claude web search guide; Google's How Gemini plans trips (live data from Google Maps, Flights and Hotels). MCP access: Anthropic custom connectors and OpenAI developer mode and MCP apps; CityWalk Plan details from our MCP page and planner. Stop orders are editorial guidance, not measured routes. Last checked October 8, 2026.
FAQ
Can ChatGPT plan a walking itinerary?
It can write one in seconds, but it can invent places, get addresses or hours wrong, and mostly gives you text instead of a map you can follow, reorder, or take offline. It's great for ideas — not for an accurate day on foot.
Why do AI trip planners recommend places that don't exist?
A language model generates plausible text from patterns, not facts from a verified database. So it confidently names a café, address, or opening time that's off, out of date, or made up. That's hallucination, and in travel it sends you to a shuttered storefront.
What's the best AI trip planner for a city walk?
For accuracy on foot, a catalog-based planner that uses real, mapped places beats a pure chatbot. CityWalk Plan is free, builds a day-by-day route from hand-verified places, groups them by neighborhood, and lets you edit, share, and export it offline.
Is there a free trip planner that doesn't make things up?
Yes. CityWalk Plan builds walking routes from a hand-maintained catalog of real places with verified coordinates — no AI-invented stops — and it's free with no sign-up. You can also have an AI assistant call it through MCP to get the same route inside a chat.