AI Brand Sentiment Tracker: Across All Engines

Why AI sentiment matters for your brand

Counting mentions is easy. Counting good mentions is the work. When an AI engine says "Lumos is fast and LatAm-focused but newer than incumbents", that mention shows up as a +1 in any monitoring tool. But the second clause is the one your buyer remembers. The qualifier travels with the mention.

AI engines rarely describe brands without qualification. They were trained on long-form text — reviews, comparison posts, Reddit threads — where balance is the default. So almost every mention carries an implicit tone. Sentiment monitoring is how you read that tone, theme by theme, engine by engine.

Unlike traditional brand monitoring, which scrapes Twitter and review sites, the Lumos sentiment view captures what the AI engine itself says to a buyer. That is the surface the next generation of buyers is consulting.

What you see inside Lumos

The preview shows the actual Lumos Sentiment view, run on our own brand this week across 140 buyer-intent prompts. The same view runs against your brand the moment you sign up.

• The sentiment bar breaks 140+ mentions into positive, neutral, and negative slices.
• The themes list extracts the recurring phrases AI engines actually use about you, scored by how often they appear.
• Source prompts ties each negative theme back to the specific buyer queries driving it, so you know exactly what content to ship.

The first sentiment scan finishes in minutes after signup.

Common AI sentiment mistakes

Reading the average instead of the themes. "62% positive" sounds great until you see that the negative tail is dominated by a single theme that is costing you deals.

Ignoring engine differences. ChatGPT and Claude often agree. Perplexity and Gemini diverge because they ground on different web sources. A theme that is invisible to ChatGPT but loud in Perplexity tells you which web surface is driving the narrative.

Reacting to one negative mention. AI engines hallucinate occasionally. A single negative sample is not a signal. A theme — the same phrase appearing across dozens of prompts and engines — is.

Trying to silence negative themes. You cannot argue an AI engine out of a theme by removing the source. Instead, outweigh it: publish stronger, fresher counter-content.

Tracking sentiment without prompts. Sentiment in isolation is meaningless. The same brand can be 90% positive on one prompt and 50% positive on another. Prompts are the unit.

Next steps

• Run the Lumos sentiment view on your brand: sign up, see themes in five minutes.
• Quantify your overall position: GEO Score Calculator.
• Find your weak prompts: AI Visibility Quick Check.
• Learn the strategy: What is GEO? and How to appear in ChatGPT.