Know exactly what ChatGPT and Gemini say about your brand
Define the real questions your customers ask — "what's the best X software in Mexico?" — and Lumen runs them every day against ChatGPT and Gemini, showing whether you're mentioned, at what position, and what was actually said.
Start freePrompts in your market's language
Write questions the way your actual LATAM customers phrase them in Spanish or Portuguese — not generic translations built for the US market.
Automatic daily execution
Every prompt runs daily against ChatGPT and Gemini with no manual work — you find out the same day if your visibility shifts.
Full response history
We store the complete response from every run, not just whether you were mentioned. Read exactly what the model said about you.
Per-prompt ranking and trend
Each prompt has its own historical visibility score, so you see which questions favor you and which need work.
Add your prompts
Load the questions that matter for your business — by category, city, or use case.
Lumen runs them daily
We run each prompt against ChatGPT and Gemini and analyze whether your brand appears and at what position.
Check your dashboard
See ranking and trend for every prompt, and compare results against your competitors.