AI fitting room for the buyer — selection of products during purchases

Client's task:
The owner of a men's clothing store regularly goes on buying trips. At the location, it is necessary to quickly understand: will a specific item match the existing suits in the assortment?

Solution:
I developed an automated system based on n8n with a Telegram interface. The buyer takes a photo of the item in the store and sends the picture. The system automatically uploads 5 pre-loaded models in suits from Google Drive and generates a hint with clear fitting rules for each pair. The system automatically determines the type of item and applies the necessary rules. Gemini generates 5 photos and returns the result directly in Telegram — the buyer sees all combinations and makes a purchasing decision on the spot.

Result for the business
Purchases have become more accurate: the buyer makes decisions not based on intuition, but on visual results. Items that do not match the assortment are filtered out in the store — before money is spent. This reduces the percentage of unsuccessful purchases and increases the average turnover of goods in the catalog.

Numbers
5 photos with different suits per request
Time from sending the photo to the result ~1-2 minutes
Cost of one check ~0.9-1.2$

Stack
n8n · Telegram Bot API · Gemini 3.1 Flash Image · Google Drive · JavaScript Code Nodes