Key takeaways
- Peec AI, Mentions.so, and Promptwatch all track brand mentions across AI models like ChatGPT, Claude, and Perplexity -- but they solve different problems
- Peec AI is the most research-oriented of the three, with deep analytics and agency-style reporting, but it stops at monitoring
- Mentions.so is lightweight and fast to set up, best suited for founders or small teams who just want a pulse on their brand
- Promptwatch is the only one of the three that goes beyond tracking -- it identifies content gaps, generates content engineered to get cited, and attributes AI traffic to revenue
- If your goal is to actually improve your AI visibility (not just measure it), the tool you pick matters a lot
Why this comparison matters right now
A year ago, "AI brand monitoring" was a niche concern. Now it's a real budget line item. ChatGPT, Perplexity, Claude, and Google's AI Overviews are answering millions of purchase-intent queries every day -- and if your brand isn't showing up in those answers, you're losing ground to competitors who are.
The market responded with a wave of tools. Some are genuinely useful. Some are dashboards dressed up as strategy. And a few are actually helping brands move the needle.
This guide focuses on three of the most-discussed options in 2026: Peec AI, Mentions.so, and Promptwatch. They're often mentioned in the same breath, but they're built around fundamentally different assumptions about what you actually need.
What "brand mention tracking in AI search" actually means
Before comparing tools, it's worth being precise about what we're measuring.
When an AI model like ChatGPT answers a question -- "What's the best project management tool for remote teams?" -- it might name five products. Whether your brand is one of those five, how prominently it's mentioned, and whether the AI links to your site or a competitor's: that's AI brand visibility.
Tracking it means running prompts through AI models at regular intervals, recording the responses, and analyzing patterns over time. Which prompts trigger your brand? Which ones favor competitors? What does the AI say about you when it does mention you -- positive, neutral, negative?
The harder question is what you do with that information. That's where these three tools diverge sharply.
Peec AI: deep research, agency-grade reporting
Peec AI has carved out a reputation as one of the more analytically serious tools in this space. It's frequently cited alongside Profound and Otterly.AI as a monitoring-first platform, and that description is accurate -- but Peec AI goes deeper than most on the research side.
What Peec AI does well:
- Tracks brand mentions across multiple AI models with solid prompt coverage
- Provides agency-style reporting that clients can actually read
- Unlimited seats, which matters for larger teams where per-user pricing gets painful fast
- Suggests prompts based on your category, so you're not starting from a blank slate
- Competitive benchmarking that shows how your visibility stacks up against named competitors
The Reddit SEO community has noted that Peec AI is the go-to if you "need deep research and agency-style reporting" -- and that's a fair summary. If you're an agency running AI visibility audits for clients, Peec AI gives you the data depth to make those reports credible.
The limitation is that Peec AI is fundamentally a monitoring and analysis tool. It tells you what's happening. It doesn't help you change it. There's no content gap analysis that shows you which specific topics you're missing, no built-in content generation, and no AI crawler logs to show you how models are actually indexing your site. You get excellent visibility into the problem; you're on your own for the solution.
Mentions.so: lightweight, fast, and honest about its scope
Mentions.so takes the opposite approach. It's a lean tool built around a simple value proposition: know when and where your brand gets mentioned across AI models, without a steep learning curve or a heavy price tag.
It's genuinely useful for:
- Founders and small marketing teams who want a quick read on AI brand presence
- Early-stage companies that need to establish a baseline before investing in deeper optimization
- Anyone who finds the more complex platforms overwhelming and just wants a clean dashboard
The setup is fast. You enter your brand, your competitors, and a handful of prompts. The tool runs them through AI models and surfaces the results. It's not trying to be Profound or Promptwatch -- and that's actually a reasonable product decision for a certain type of user.
The honest limitation: Mentions.so is a pulse-check tool. It doesn't have the prompt volume or analytical depth of Peec AI, and it has no optimization capabilities whatsoever. If you're a brand that's serious about improving your AI search presence -- not just observing it -- you'll outgrow Mentions.so quickly.
Promptwatch: the only one that closes the loop
Promptwatch is built around a different premise than the other two. The argument is that monitoring without action is just expensive anxiety. Knowing you're invisible in ChatGPT doesn't help unless you can do something about it.
Promptwatch's core workflow runs in three stages:
- Find the gaps: Answer Gap Analysis shows exactly which prompts your competitors rank for that you don't. Not vague categories -- specific questions and topics that AI models are answering without citing you.
- Create content that ranks: A built-in AI writing agent generates articles, listicles, and comparisons grounded in citation data from over 880 million citations analyzed. This isn't generic content -- it's engineered around what AI models actually cite.
- Track the results: Page-level tracking shows which of your pages are getting cited, by which models, and how often. Traffic attribution (via code snippet, Google Search Console integration, or server log analysis) connects AI visibility to actual revenue.
Beyond the core loop, Promptwatch has capabilities that neither Peec AI nor Mentions.so come close to:
- AI Crawler Logs that show you exactly which pages ChatGPT, Claude, and Perplexity are crawling -- and which ones they're ignoring or hitting errors on
- Prompt Intelligence with volume estimates and difficulty scores, so you can prioritize high-value prompts instead of guessing
- Reddit and YouTube tracking that surfaces discussions influencing AI recommendations
- ChatGPT Shopping tracking for brands that appear in product carousels
- Competitor heatmaps across 10+ AI models
- Multi-language and multi-region monitoring
It monitors 10 AI models: ChatGPT, Perplexity, Google AI Overviews, Google AI Mode, Claude, Gemini, Meta/Llama, DeepSeek, Grok, Mistral, and Copilot. That's broader coverage than either Peec AI or Mentions.so.
In a 2026 comparison of 12 GEO platforms, Promptwatch was the only tool rated as a "Leader" across all evaluation categories -- the distinction being that most competitors are monitoring dashboards while Promptwatch is an optimization platform.
Head-to-head comparison
| Feature | Peec AI | Mentions.so | Promptwatch |
|---|---|---|---|
| AI models tracked | Multiple | Limited | 10 (ChatGPT, Claude, Perplexity, Gemini, Grok, DeepSeek, Copilot, Meta AI, Google AIO, Google AI Mode) |
| Brand mention tracking | Yes | Yes | Yes |
| Competitor benchmarking | Yes | Basic | Yes (heatmaps) |
| Prompt suggestions | Yes | No | Yes (with volume + difficulty scores) |
| Content gap analysis | No | No | Yes (Answer Gap Analysis) |
| AI content generation | No | No | Yes (built-in writing agent) |
| AI crawler logs | No | No | Yes |
| Reddit/YouTube tracking | No | No | Yes |
| ChatGPT Shopping tracking | No | No | Yes |
| Traffic attribution | No | No | Yes (GSC, snippet, server logs) |
| Multi-language/region | Limited | No | Yes |
| Unlimited seats | Yes | No | Plan-dependent |
| Best for | Agencies needing deep research | Small teams wanting a pulse check | Teams that want to improve AI visibility, not just measure it |
| Starting price | Mid-range | Low | $99/mo (Essential) |
Which tool is right for you?
The honest answer depends on what stage you're at and what you actually need.
Choose Peec AI if you're an agency running AI visibility audits for multiple clients and need detailed, presentable research. The reporting depth is real, and unlimited seats make it practical for team use. Just go in knowing you'll need separate tools (or manual effort) to act on what you find.
Choose Mentions.so if you're a founder or a small team that wants basic awareness of your AI brand presence without committing to a complex platform. It's a reasonable starting point, especially if you're not yet sure how much AI search matters to your specific business.
Choose Promptwatch if you're past the "let's see what's happening" phase and want to actually move the needle. The gap analysis tells you what content to create. The writing agent helps you create it. The tracking shows you whether it worked. That full cycle -- find gaps, generate content, track results -- is what separates an optimization platform from a monitoring dashboard.
For most marketing and SEO teams in 2026, the monitoring-only approach has a short shelf life. The question isn't whether your brand appears in AI answers -- it's whether you can systematically improve that visibility over time. That's the problem Promptwatch is built to solve.
A note on the broader landscape
Peec AI and Mentions.so aren't the only alternatives worth knowing about. Depending on your needs, tools like Otterly.AI offer affordable entry-level monitoring:
Profound is strong for enterprise use cases:
And SE Ranking has added AI visibility tracking to its broader SEO suite:
But none of these close the full loop from monitoring to content creation to traffic attribution the way Promptwatch does. If you're evaluating the space seriously, that's the capability gap worth paying attention to.
The bottom line
Brand mention tracking in AI search is table stakes now. The real differentiator in 2026 isn't whether a tool can show you that you're invisible -- most of them can. It's whether the tool can help you become visible.
Peec AI is the best pure research tool of the three. Mentions.so is the easiest to start with. But if you want a platform that treats monitoring as the beginning of the process rather than the end, Promptwatch is in a different category from the other two.
The data is only useful if you can act on it. That's the question worth asking before you commit to any of these tools.