Key Takeaways
- Mentions.so is a specialized AI search mention tracker focused exclusively on brand monitoring across LLMs -- no traditional SEO features. Atomic AGI is a full SEO platform that happens to include AI search tracking alongside Google analytics, technical audits, and workflow automation.
- Pricing difference is significant: Mentions.so starts at $99/mo for basic tracking. Atomic AGI starts at $10/mo and includes both AI search monitoring and traditional SEO tools in one package.
- Mentions.so tracks 8 AI models (ChatGPT, Claude, Gemini, Perplexity, Grok, DeepSeek, Meta AI, Google AI Overview). Atomic AGI tracks 4 core models (ChatGPT, Perplexity, Gemini, Claude) but adds comprehensive Google search analytics and technical SEO audits.
- If you only care about AI search mentions and sentiment analysis, Mentions.so is purpose-built for that. If you need a complete SEO stack that covers both traditional search and AI engines, Atomic AGI gives you more for less money.
- Mentions.so provides daily sentiment reports and competitor comparison dashboards. Atomic AGI focuses on actionable SEO workflows, AI agents for automation, and traffic attribution across both Google and LLMs.
- Neither tool offers content generation or gap analysis out of the box -- they're monitoring and analytics platforms. For content optimization specifically engineered for AI citations, Promptwatch fills that gap with its AI writing agent and Answer Gap Analysis.
Overview
Mentions.so

Mentions.so is a brand mention tracking tool built specifically for AI search engines. It monitors how ChatGPT, Claude, Gemini, Perplexity, and other LLMs talk about your brand, analyzes sentiment, and compares your visibility against competitors. The platform sends daily performance reports and provides actionable recommendations to improve your AI rankings. It's designed for marketing teams who want to understand and shape how AI models portray their brand.
The tool supports 8 AI models and offers a free tier to get started. Paid plans range from $99/mo (Starter) to $599/mo (Agency) with annual billing discounts.
Atomic AGI

Atomic AGI positions itself as an "AI-native SEO platform" -- a complete SEO operating system that tracks both traditional Google search and AI search engines. It combines multi-engine data tracking, technical website audits, SEO analytics, AI agents, and workflow automation in one platform. The goal is to help marketing teams scale organic growth across Google and LLMs without scaling headcount.
Atomic tracks 4 core AI models (ChatGPT, Perplexity, Gemini, Claude) alongside comprehensive Google search analytics. It's used by brands like Booking.com, Accenture, and MIT. Pricing starts at $10/mo for the Starter plan with a free tier available.
Side-by-Side Comparison
| Feature | Mentions.so | Atomic AGI |
|---|---|---|
| Starting price | $99/mo | $10/mo |
| Free tier | Yes | Yes |
| AI models tracked | 8 (ChatGPT, Claude, Gemini, Perplexity, Grok, DeepSeek, Meta AI, Google AI Overview) | 4 (ChatGPT, Perplexity, Gemini, Claude) |
| Google search tracking | No | Yes (comprehensive) |
| Technical SEO audits | No | Yes |
| Sentiment analysis | Yes (daily reports) | Not emphasized |
| Competitor comparison | Yes (real-time visibility dashboards) | Yes (multi-engine) |
| Traffic attribution | Yes (AI traffic tracking) | Yes (Google + LLM attribution) |
| Content generation | No | No |
| AI agents/automation | No | Yes (workflow automation) |
| Custom prompts | Yes (manual + AI-suggested) | Not specified |
| Reporting frequency | Daily performance reports | Real-time dashboards |
| Target audience | Brand managers, PR teams, marketers focused on AI reputation | SEO teams, growth marketers, agencies managing full organic strategy |
Feature deep-dive
AI search engine coverage
Mentions.so tracks 8 AI models: ChatGPT, Claude, Gemini, Perplexity, Grok, DeepSeek, Meta AI, and Google AI Overview. This is broader coverage than most competitors. The platform lets you see exactly what each model says about your brand and compare visibility across all of them in one dashboard.
Atomic AGI tracks 4 core models: ChatGPT, Perplexity, Gemini, and Claude. It doesn't cover Grok, DeepSeek, or Meta AI. The focus is on the most widely used AI search engines rather than comprehensive coverage.
Verdict: Mentions.so wins on breadth of AI model coverage. If you need to monitor niche or emerging LLMs like DeepSeek or Grok, Mentions.so is the only option here.
Traditional SEO capabilities
Mentions.so has zero traditional SEO features. It doesn't track Google rankings, provide keyword research, run technical audits, or monitor backlinks. It's purely an AI search mention tracker.
Atomic AGI is a full SEO platform. It tracks Google search rankings, provides keyword analytics, runs technical website audits, monitors backlinks, and offers SEO workflow automation. The AI search tracking is one component of a larger SEO toolkit.
Verdict: Atomic AGI is the clear winner if you need traditional SEO tools. Mentions.so isn't even playing in this space.
Sentiment and brand monitoring
Mentions.so emphasizes sentiment analysis. You get daily reports showing whether AI models are portraying your brand positively, neutrally, or negatively. The dashboard visualizes sentiment trends over time and lets you drill into specific responses to understand why sentiment shifted.
Atomic AGI doesn't highlight sentiment analysis as a core feature. The focus is on visibility metrics and traffic attribution rather than qualitative brand perception.
Verdict: Mentions.so is purpose-built for brand sentiment tracking. If understanding how AI models feel about your brand matters to you, Mentions.so delivers that explicitly.
Competitor analysis
Mentions.so provides real-time competitor visibility dashboards. You can see how your brand's mention rate compares to competitors across each AI model. The interface shows percentage visibility scores side-by-side (e.g. "Kajabi 67%, Thinkific 59%, Teachable 46%").
Atomic AGI offers multi-engine competitor tracking but doesn't emphasize the visual comparison dashboards as heavily. The focus is more on your own performance metrics than head-to-head competitor benchmarking.
Verdict: Mentions.so makes competitor comparison more visual and accessible. If you're in a crowded market and need to track competitive positioning in AI search, Mentions.so's dashboards are easier to parse.
Automation and AI agents
Mentions.so doesn't offer workflow automation or AI agents. It's a monitoring and reporting tool -- you get insights, but you act on them manually.
Atomic AGI includes AI agents and workflow automation as core features. You can set up automated SEO tasks, trigger actions based on ranking changes, and build custom workflows to scale SEO operations without adding headcount.
Verdict: Atomic AGI wins decisively. If you want to automate repetitive SEO tasks or build custom workflows, Atomic is the only option here.
Traffic attribution
Mentions.so tracks AI traffic and shows you how much traffic you're getting from AI models and where it's coming from. The analytics dashboard breaks down traffic sources by AI engine.
Atomic AGI provides traffic attribution across both Google and LLMs. You can see which pages are driving organic traffic from traditional search and which are getting traffic from AI search engines.
Verdict: Tie. Both tools offer traffic attribution, but Atomic's is more comprehensive because it covers Google as well.
Prompt customization
Mentions.so lets you add prompts manually or use AI-suggested prompts. The platform analyzes your domain and suggests relevant queries to monitor. You can accept or reject each suggestion.
Atomic AGI doesn't emphasize custom prompt tracking in its marketing materials. The focus is on automated data collection and analysis rather than manual prompt curation.
Verdict: Mentions.so gives you more control over which specific prompts you're monitoring. If you have a list of high-value queries you want to track, Mentions.so makes that easier.
Actionable recommendations
Mentions.so provides daily reports with "practical recommendations to boost your AI rankings." The platform analyzes how AI talks about your brand and gives you clear steps to rank higher.
Atomic AGI focuses on data dashboards and workflow automation rather than prescriptive recommendations. You get the analytics and tools to act, but the platform doesn't hand you a to-do list.
Verdict: Mentions.so is more prescriptive. If you want the tool to tell you what to do next, Mentions.so's daily recommendation reports are helpful. Atomic assumes you know what to do with the data.
Pricing comparison
| Plan | Mentions.so | Atomic AGI |
|---|---|---|
| Free tier | Yes (limited features) | Yes (limited features) |
| Starter | $99/mo | $10/mo |
| Mid-tier | Not specified | Not specified |
| Agency/Enterprise | $599/mo | Custom pricing |
| Annual discount | 16% off | Not specified |
Mentions.so is significantly more expensive. The entry point is $99/mo compared to Atomic's $10/mo. If you're a solo marketer or small team, that's a 10x price difference for the base tier.
Atomic AGI's pricing structure isn't fully detailed on their site, but the $10/mo entry point suggests they're positioning as a more accessible, all-in-one platform. Mentions.so's pricing reflects its specialized focus -- you're paying for deep AI search monitoring, not a broad SEO toolkit.
Pros and cons
Mentions.so pros
- Tracks 8 AI models (broadest coverage in this comparison)
- Daily sentiment analysis reports with clear positive/neutral/negative breakdowns
- Visual competitor comparison dashboards that make benchmarking easy
- Custom prompt tracking with AI-suggested queries
- Purpose-built for brand monitoring in AI search
- Free tier available to test before committing
Mentions.so cons
- No traditional SEO features at all (no Google tracking, no technical audits)
- Expensive compared to all-in-one platforms ($99/mo entry point)
- No workflow automation or AI agents
- No content generation or optimization tools
- Limited to monitoring and reporting -- you act on insights manually
Atomic AGI pros
- Extremely affordable entry point ($10/mo)
- Full SEO platform covering Google + AI search in one tool
- Technical website audits and SEO analytics included
- AI agents and workflow automation to scale operations
- Traffic attribution across both traditional and AI search
- Used by major brands (Booking.com, Accenture, MIT)
- Free tier available
Atomic AGI cons
- Only tracks 4 AI models (no Grok, DeepSeek, Meta AI)
- Doesn't emphasize sentiment analysis or brand perception tracking
- Less visual competitor comparison dashboards
- No custom prompt curation features
- Broader platform means less specialized depth in AI search monitoring
Who should pick which tool
Pick Mentions.so if:
- You're a brand manager, PR team, or marketer focused specifically on how AI models talk about your brand
- Sentiment analysis and reputation monitoring in AI search is your primary concern
- You need to track emerging AI models like Grok, DeepSeek, or Meta AI
- You want daily reports with prescriptive recommendations handed to you
- You already have traditional SEO covered and just need AI search monitoring
- Visual competitor benchmarking dashboards are important for your reporting
Pick Atomic AGI if:
- You're an SEO team or growth marketer managing both traditional and AI search
- You need a complete SEO platform (Google tracking, technical audits, analytics) alongside AI search monitoring
- Budget is a concern -- you want the most features for the lowest price
- You want workflow automation and AI agents to scale SEO operations
- You're comfortable with data dashboards and don't need prescriptive daily to-do lists
- You only care about the 4 most widely used AI search engines (ChatGPT, Perplexity, Gemini, Claude)
Consider complementing either tool with Promptwatch if:
- You need content gap analysis to find exactly which prompts competitors rank for but you don't
- You want an AI writing agent that generates content specifically engineered to get cited by LLMs
- You need crawler logs showing how AI models are actually reading your website
- You want to track Reddit and YouTube discussions that influence AI recommendations

Final verdict
These tools serve different audiences. Mentions.so is a specialized AI search brand monitor -- deep, focused, and expensive. Atomic AGI is a broad SEO platform that includes AI search tracking as one component of a larger toolkit -- affordable, comprehensive, and less specialized.
If you're choosing purely on AI search monitoring depth, Mentions.so wins on model coverage (8 vs 4) and sentiment analysis. If you're choosing on value and breadth, Atomic AGI gives you way more for way less money.
The real question is whether you need a standalone AI search monitor or a full SEO platform. Most teams will get more mileage out of Atomic AGI's all-in-one approach at $10/mo. Mentions.so makes sense if AI brand reputation is mission-critical and you're willing to pay $99/mo for specialized depth.
One-liner: Mentions.so is the specialist; Atomic AGI is the generalist. Pick based on whether you need a scalpel or a Swiss Army knife.