Brandlight vs Mentions.so (2026): Which AI visibility tool is right for you?

Key Takeaways

• Brandlight starts at $199/mo and targets enterprise clients with Fortune 500 customers; Mentions.so starts at $0 (free tier) and $99/mo paid, making it 50% cheaper for small teams
• Both track the same core AI models (ChatGPT, Claude, Gemini, Perplexity, Grok, DeepSeek, Meta AI) but Brandlight adds Google AI Overviews while Mentions.so doesn't list it explicitly
• Mentions.so includes AI traffic attribution and daily performance reports in all paid plans; Brandlight gates traffic tracking behind higher tiers
• Brandlight raised $30M Series A in 2025 and positions itself as an enterprise platform; Mentions.so is a leaner tool built for startups and agencies
• Neither platform offers content generation or optimization features -- they're monitoring-only dashboards that show you data but don't help you fix gaps
• If you need to actually create content that ranks in AI search (not just track mentions), tools like Promptwatch fill that gap with AI content generation and answer gap analysis

Overview

Brandlight

Brandlight is an AI visibility platform aimed squarely at enterprise marketing teams. The company raised $30M in Series A funding in 2025 and counts Fortune 500 brands like Mastercard, Estée Lauder, Humana, and Verifone as customers. The pitch: monitor how AI models talk about your brand, compare your visibility to competitors, and get sentiment analysis across major LLMs. Pricing starts at $199/mo for the base tier and goes up to $750/mo for the "activation plan," with custom enterprise pricing above that.

Brandlight's website emphasizes "AI intelligence into business outcomes" and real-time insights, but the actual feature set is monitoring-focused. You see where you're mentioned, how often, and what AI models say about you. What you don't get: tools to fix the gaps or generate content that improves your rankings.

Mentions.so

Mentions.so takes a different approach. It's a lighter, more affordable tool built for startups, agencies, and small marketing teams. The platform tracks brand mentions across the same core AI models (ChatGPT, Claude, Gemini, Perplexity, Grok, DeepSeek, Meta AI) and includes AI traffic attribution to show how much traffic you're getting from AI search. Pricing is transparent: free tier available, $99/mo Starter plan, $599/mo Agency plan. Annual billing saves 16%.

The interface is simpler than Brandlight's -- you add your domain, pick or customize prompts, and get daily performance reports with sentiment tracking and competitor comparisons. Mentions.so positions itself as the tool that "tells you why you're not mentioned in AI, and how to fix it," but the "how to fix it" part is limited to recommendations, not actual content creation.

Side-by-side comparison

Pricing breakdown

Both platforms use tiered pricing but with very different entry points.

Brandlight's pricing is opaque -- the website lists $199/mo and $750/mo but doesn't explain what you get at each tier. The "activation plan" at $750/mo suggests some kind of optimization or action layer, but details are behind a demo wall. Enterprise pricing is custom, which usually means "if you have to ask, you can't afford it."

Mentions.so is straightforward: free tier for testing, $99/mo Starter for solo users or small teams, $599/mo Agency for multi-client management. The 16% annual discount brings the Starter plan down to about $83/mo, making it one of the cheapest AI visibility tools on the market.

Feature deep-dive

AI model coverage

Both platforms track the major LLMs that matter in 2026: ChatGPT, Claude, Gemini, Perplexity, Grok, DeepSeek, and Meta AI. Brandlight explicitly lists Google AI Overviews (the AI-generated answer boxes in Google search results), which is a meaningful addition -- Google AI Overviews drive significant traffic and brand visibility. Mentions.so doesn't mention Google AI Overviews on its website, so it's unclear if they track it or not.

Neither platform tracks Mistral or Copilot, which are smaller players but still relevant for European markets (Mistral) and enterprise Microsoft users (Copilot). If you need comprehensive coverage across all 10+ major AI models, you're looking at tools like Promptwatch that monitor a wider range.

Competitor comparison

Both platforms let you compare your brand's AI visibility against competitors. Brandlight shows side-by-side visibility percentages across LLMs -- e.g. "Your brand is mentioned 67% of the time vs Competitor A at 59%." Mentions.so has a similar view with a timeline chart showing daily fluctuations.

The difference: Brandlight emphasizes "real-time" tracking, which suggests more frequent data refreshes. Mentions.so explicitly offers daily performance reports, so you're getting at least one update per day. For most use cases, daily is enough -- AI model responses don't change hourly.

Sentiment analysis

Brandlight and Mentions.so both analyze sentiment in AI responses. Brandlight's dashboard shows "Very Positive," "Neutral," and "Negative" sentiment over time. Mentions.so has a similar breakdown. This is useful for brand reputation monitoring -- if AI models start associating your brand with negative sentiment, you know you have a problem.

The limitation: sentiment analysis tells you what's happening, not why or how to fix it. If ChatGPT is giving you negative sentiment because of outdated information on your website, neither tool will surface that specific gap or help you rewrite the content.

AI traffic attribution

Mentions.so includes AI traffic tracking in all paid plans. You can see how much traffic you're getting from AI models and which prompts are driving it. This is a big deal -- most AI visibility tools (including Brandlight at lower tiers) don't connect mentions to actual traffic.

Brandlight mentions traffic tracking but doesn't specify which tier includes it. The $750/mo "activation plan" name suggests it might be gated behind that tier. If you're paying $199/mo and not getting traffic data, you're flying blind on ROI.

Prompt customization

Both platforms let you add custom prompts to track. Mentions.so goes a step further with AI-suggested prompts -- the platform analyzes your domain and suggests relevant queries to monitor. This is helpful if you're not sure what prompts your customers are actually using.

Brandlight doesn't mention AI-suggested prompts on its website, so you're likely building your prompt list manually. Not a dealbreaker, but it adds setup time.

Content optimization and generation

Neither Brandlight nor Mentions.so offers content generation or optimization features. They're both monitoring dashboards -- you see the data, but you're on your own to fix it. If AI models aren't mentioning your brand, these tools won't help you create the content that gets you cited.

This is the biggest gap in both platforms. Monitoring is step one, but what you really need is the action loop: find gaps, create content, track results. Mentions.so hints at "practical recommendations" but those are generic suggestions, not actual content.

If you want a platform that goes beyond monitoring, Promptwatch includes answer gap analysis (shows exactly which prompts competitors rank for but you don't) and an AI writing agent that generates articles grounded in real citation data. That's the difference between knowing you have a problem and actually solving it.

User interface and reporting

Mentions.so has a cleaner, more modern interface based on the screenshots. The dashboard is straightforward: workspace setup, prompt tracking, daily reports. Brandlight's website shows more complex visualizations, which could be a pro (more data) or a con (steeper learning curve).

Mentions.so explicitly offers daily performance reports with actionable insights. Brandlight mentions "real-time insights" but doesn't specify reporting cadence. If you want a digest email every morning with what changed overnight, Mentions.so delivers that out of the box.

Who should pick Brandlight

Brandlight makes sense if:

• You're an enterprise marketing team with a $200+/mo budget per tool
• You need to justify spend to executives with Fortune 500 case studies and a $30M funding story
• You want Google AI Overviews tracking specifically (assuming it's included -- confirm in the demo)
• You're already using enterprise SEO tools and want a similar level of polish and support
• You don't mind opaque pricing and gated features

Brandlight is the "safe" choice for large companies. The customer logos (Mastercard, Estée Lauder, Humana) signal that it works at scale. But you're paying a premium for that enterprise positioning, and you're not getting content creation or optimization tools.

Who should pick Mentions.so

Mentions.so is the better fit if:

• You're a startup, agency, or small marketing team with a tight budget
• You want to test AI visibility tracking with a free tier before committing
• You need AI traffic attribution without paying $750/mo
• You value transparent pricing and a simple, modern interface
• You want daily performance reports and AI-suggested prompts without extra setup

Mentions.so gives you 80% of what Brandlight offers at 50% of the price. The main trade-off is brand positioning -- you won't get Fortune 500 case studies or a $30M funding announcement to show your boss. But if results matter more than logos, Mentions.so delivers.

Pros and cons

Brandlight pros

• Enterprise credibility with Fortune 500 customers
• Tracks Google AI Overviews (if confirmed)
• $30M Series A funding signals long-term viability
• Real-time tracking (assuming faster refresh rates than competitors)

Brandlight cons

• 2x more expensive than Mentions.so at entry level
• No free tier for testing
• Opaque pricing and feature gating
• No content generation or optimization tools
• AI traffic attribution unclear at lower tiers

Mentions.so pros

• 50% cheaper than Brandlight ($99/mo vs $199/mo)
• Free tier available for testing
• AI traffic attribution included in all paid plans
• Daily performance reports and AI-suggested prompts
• Transparent pricing with 16% annual discount
• Clean, modern interface

Mentions.so cons

• No enterprise case studies or brand credibility signals
• Google AI Overviews tracking unclear
• No content generation or optimization tools
• Smaller team and less funding (potential long-term risk)

The monitoring-only problem

Here's the uncomfortable truth about both platforms: they're dashboards, not solutions. You pay $99-$750/mo to see where you're invisible in AI search, but then you're stuck. Neither tool helps you create the content that actually improves your rankings.

This is the core difference between monitoring platforms and optimization platforms. Monitoring shows you the problem. Optimization helps you fix it.

If you're serious about AI visibility, you need three things:

1. Find the gaps: Which prompts are competitors visible for but you're not? What content is missing from your site?
2. Create content that ranks: Generate articles, listicles, and comparisons that AI models actually cite.
3. Track the results: See your visibility scores improve as AI models start citing your new content.

Brandlight and Mentions.so handle step three. They don't touch steps one or two. You're left guessing what content to create and writing it manually.

Tools like Promptwatch close this loop with answer gap analysis (shows exactly which prompts you're missing) and an AI writing agent that generates content grounded in 880M+ citations analyzed. That's the difference between knowing you have a problem and actually solving it.

Final verdict

For most teams, Mentions.so is the smarter pick. You get the same core features (AI model tracking, competitor comparison, sentiment analysis) at half the price, plus AI traffic attribution and daily reports without tier gating. The free tier lets you test before committing, and the $99/mo Starter plan is affordable for startups and small agencies.

Brandlight makes sense if you're an enterprise team that values brand positioning and needs Fortune 500 case studies to justify spend. But you're paying a premium for that credibility, and the opaque pricing is frustrating.

The bigger question: do you just want to monitor AI mentions, or do you want to actually improve them? If it's the latter, neither Brandlight nor Mentions.so gives you the tools to create content that ranks. You're paying for a dashboard that shows you the problem, then leaving you to solve it manually. That's fine if you have a content team ready to execute, but it's not a complete solution.

Bottom line: Mentions.so for budget-conscious teams, Brandlight for enterprises that need logo credibility, and neither if you want a platform that actually helps you optimize for AI search instead of just tracking it.