Why Photerra’s trip planner cannot invent a place
An AI planner can send you somewhere that doesn’t exist; Photerra’s can’t, because every stop is a place someone photographed. The planner may only choose from places already on Photerra’s map, and anything else it names is thrown away before you see the trip.
The problem
A general-purpose AI model writes the most likely-sounding answer. Asked for a day in a city, it can produce a museum, a viewpoint or a tour that sounds right and is not there. This is not rare: in a Greetwell survey of U.S. travelers (August 2026), 1 in 6 of the 485 people who had used AI for travel had been recommended a place, tour or activity that wasn’t real.
How Photerra’s planner works
- It starts from the map, not from a blank page. When you ask for a trip, Photerra first gathers the spots already on its map around your destination. Every spot is a photograph: most were taken by travelers who use Photerra, and some are credited photographs from open archives.
- A language model chooses and orders, from that list only. It is given the list and asked to pick and sequence stops for your days.
- Anything not on the list is thrown away. Every stop the model returns is checked against the list it was given. A stop that isn’t on it is dropped, so a name the model made up never reaches your trip. This is a check in the code, not a request in the instructions.
- Saving checks again. When you save the trip, each stop must still be a live spot on the map.
What this does not promise
It is a promise about places: each stop exists and someone photographed it. It is not a promise about routes, opening hours, today’s conditions, or safety.
- Routes and conditions. The planner picks places, not trails or climbing lines, and it knows nothing about today’s weather, snow or water. Two widely reported 2026 mountain rescues began with AI advice about a route, not an invented place: on Mount Shasta in September and in Poland’s Tatra mountains in July. Photerra would not have prevented either. For a mountain, a canyon or a coast, ask the rangers or the people who run the place.
- Hours and closures. Where map data marks a café or shop as permanently closed, the planner leaves it out, but that data is incomplete. Check hours before you go.
- The photograph is not today. A photo shows what a place looked like when it was taken. Seasons, construction and crowds change.
Where the photographs come from
Travelers add spots from their own camera rolls, and each spot is pinned about where its photograph was taken. Where travelers haven’t been yet, Photerra adds credited photographs from open archives, with the name of the person who took it and its licence on every one. See how Photerra compares and how the open data is used.