Best Free AI Brand Monitoring Tools

Your brand is being talked about in places your inbox never sees. Someone asks ChatGPT about your category, and an answer appears with a verdict on you baked in. A Reddit thread forms an opinion overnight. A Perplexity summary frames you next to a competitor. None of it lands in your notifications, and most monitoring tools miss the AI surfaces entirely.

If that feels like a lot to keep up with, that is normal. The good news: you do not need a big budget to start. Free AI brand monitoring has caught up fast, and you can begin watching mentions and sentiment today without a credit card.

This roundup is for brand and comms owners, not SEO teams. The focus is brand mentions and how people feel about you, across AI answers and the wider web, not keyword rankings or citation counts. Let's find the one tool that fits where you are right now.

How we picked these tools

A roundup is only as trustworthy as its criteria, so here are ours. Every tool below meets at least one of these tests, and most meet two:

• It has a genuinely free tier or a full free trial you can start without paying.
• It monitors brand mentions and sentiment, not just where you rank in search.
• It is AI-aware: it either watches AI chatbot answers directly (ChatGPT, Perplexity, Gemini, Claude, Google AI Mode) or uses AI to read sentiment and context on web and social mentions.

We drew a hard line on "free." A tool that goes view-only the moment a trial ends is technically free and practically useless for ongoing work, so we say plainly where that happens. "Truly free" means free forever with the core feature working, not a countdown. We also kept paid-only AI-visibility trackers out of this list, because your job here is watching what people say about your brand, not scoring your search rank.

One honest note before the list. No free tier replaces a paid monitoring subscription for the long haul. Think of these as a meaningful start toward free AI reputation monitoring, not a permanent equal to an enterprise contract.

Comparison table

1. DeepSmith

Best for: brand and content marketers who want to watch AI mentions and then do something about them, in one place.

Most tools on this list hand you a list of gaps and stop. DeepSmith is an AI search analytics and content production platform, so it tracks how AI engines answer questions about your brand, shows you where you are invisible or losing to competitors, and produces the on-brand content to close those gaps, all from the same data. For a comms owner, that last part is the difference between knowing you have a problem and fixing it. Engine coverage rises by tier: Pro tracks ChatGPT, Grow adds Perplexity, Scale adds Gemini, and Enterprise covers all five, including Claude and Google AI Mode.

Key features:

• An overview dashboard with mention rate, citation rate, and share of voice, broken down per platform with trends.
• Per-prompt mention rates and full answer history, plus a competitor leaderboard showing who wins your questions.
• Page-level views of which of your pages AI cites and which prompts drive them.
• Stored brand context (voice, persona, product, content types) so every produced article sounds like you.
• One-click repurposing of any article into LinkedIn, X, newsletter, and other channel-native versions.

Honest limitation: the free access is a 7-day trial, not an ongoing free plan, and the entry Pro tier covers ChatGPT only. To watch Perplexity, Gemini, Claude, and Google AI Mode you upgrade to a higher tier. The trade for that is real data and real drafts during the trial, with onboarding that populates your brand, competitors, and starter prompts before you pay.

2. Brand24

Best for: a fast, wide sweep across social, news, blogs, podcasts, and forums during a launch or an incident.

Brand24 calls itself an AI social listening tool, and its strength is breadth. It surfaces mentions across social media, news sites, blogs, videos, forums, podcasts, and reviews, with AI-powered sentiment layered on top. The 14-day free trial runs at Pro-plan features, so you get the full toolkit for two weeks on up to 10 keywords and 30,000 mentions. That is plenty for a burst of reputation scanning.

Key features:

• AI mention detection and sentiment across a very large source pool.
• Real-time alerts and email notifications when volume spikes.
• Boolean search and custom reports.
• Up to 100,000 mentions per month at the paid Pro tier.

Honest limitation: there is no ongoing free tier. Once the 14 days end, you pay to keep going, with plans starting at $199 per month (or $149 on annual billing). Great for a defined window, less so for permanent watching.

3. HubSpot AEO

Best for: teams already in HubSpot who want an AI-aware brand check that plugs into their stack.

HubSpot AEO tracks how AI answer engines describe your brand and hands you recommendations to improve. The free window lets you track 25 prompts across ChatGPT, Perplexity, and Gemini for 28 days with no credit card. There is also a separate free AEO Grader, a one-time check that scores your AI readiness across engines. Both are useful ways to see where you stand before committing.

Key features:

• 25 tracked prompts across three engines in the free 28-day window.
• Guidance on how answer engines describe you, not just whether you rank.
• A free one-time AEO Grader for a quick composite score.
• Native fit with the wider HubSpot marketing tools.

Honest limitation: 28 days is short for sustained monitoring, and the free window covers three of the five major engines (no Claude, no Google AI Mode). After that, ongoing tracking runs $50 per month per workspace or comes bundled inside Marketing Hub Professional and above.

4. Awario

Best for: smaller brands and agencies that want a baseline sentiment and share-of-voice read within a set window.

Awario is a social listening tool whose free trial hands you full Starter-plan features. That means up to 3 alerts and 30,000 mentions, with reports covering mention statistics, sentiment trend, and share-of-voice math against competitors. It is a clean way to run a first measurement without paying, especially around a campaign or event.

Key features:

• Sentiment analysis across positive, neutral, and negative mentions.
• Share-of-voice comparison so you can see your slice versus rivals.
• Three report types: mention statistics, sentiment, and competitive analysis.
• Boolean search and white-label reports at higher tiers.

Honest limitation: the 30,000-mention cap suits a launch or a short campaign, not continuous monitoring. When the trial ends, paid plans start at $49 per month with the same alert caps and longer history.

5. Mentionlytics

Best for: comparing brand and competitor chatter across many sources during a trial.

Mentionlytics is a brand monitoring and competitor analysis tool built around wide source coverage. Its pitch is unlimited source tracking, sentiment, and historical search across the open web, with brand and competitor dashboards side by side. If you like to test feature parity before you buy, the trial gives you room to do it.

Key features:

• Unlimited source tracking across the web and social.
• Sentiment analysis and historical mention search.
• Side-by-side brand and competitor dashboards.

Honest limitation: there is no advertised truly-free tier, and detailed pricing is not fully public. The free access is a 14-day trial, after which paid plans generally start around $59 per month. Plan for the transition rather than expecting a permanent free seat.

6. BrandMentions

Best for: a solo brand lead or small team that wants an ongoing free-tier monitor across web, social, news, and forums.

BrandMentions watches the whole web, social, news, and forums, with AI-powered context and sentiment on what it finds. It offers a free suite of monitoring tools alongside its paid plans, which makes it one of the few options here that gives you something continuous without a countdown. Several independent roundups list it among their free brand monitoring picks, which is a fair signal.

Key features:

• AI-powered context and sentiment analysis.
• Web, social, news, and forum coverage in one dashboard.
• Real-time mention detection and alerting.
• A free suite of tools with feature caps.

Honest limitation: the free tier caps how many keywords and alerts you can run at once, so confirm the current limits on the official pricing page before you lean on it. As a free brand mention tracking AI tool it holds up well, and paid plans start at $21 per month when you outgrow the free caps.

7. Mention.com

Best for: professional teams that need broad web and social monitoring with collaboration and reporting.

Mention.com tracks real-time mentions across Facebook, Instagram, X, Reddit, and the wider web, news, and blogs. It is built for teams, with alerts, sentiment, collaboration, and reporting. The practical free experience here is the 14-day trial, which is a solid way to evaluate the platform against your needs.

Key features:

• Real-time mention tracking across social and web.
• Boolean search, alerts, sentiment, and team collaboration.
• Integrations with Slack, Teams, and other tools.

Honest limitation: this is the clearest "free with an asterisk" on the list. After the 14-day trial, the account converts to view-only, and reviewers note that Boolean search and key features sit behind paid plans. Listed paid tiers run high, with a Company plan around $599 per month. Use the trial to evaluate, not as a lasting free tool.

8. Social Mention

Best for: a quick, no-signup spot check of brand buzz over the last day.

Social Mention is a classic free real-time search tool. Type a brand or product name and it scans many social networks at once, returning sentiment indicators, per-day mention counts, and top users, keywords, and phrases. No account, no cost, no setup. When you just need to know if something is spiking right now, it answers fast.

Key features:

• 100% free real-time search with no login to run a query.
• A live positive-versus-negative sentiment read.
• Top users, hashtags, and keywords for a term.
• Coverage across blogs, forums, news, and more.

Honest limitation: the interface is dated and there is no dashboard over time, no alerts, and no scheduled reports. It is a diagnostic you run by hand, not a monitoring system that watches for you.

9. Google Alerts

Best for: an always-on, zero-cost baseline that every brand should have running.

Google Alerts is the universally recommended starting point, and it is genuinely free forever. Set a keyword, pick your sources and delivery frequency, and Google emails you when new matches appear across its web index. Unlimited alerts per account, no dashboard to learn. If you set up nothing else this week, set up this.

Key features:

• 100% free with unlimited alerts.
• Sources spanning news, blogs, web, video, and discussions.
• Delivery from as-it-happens to once a week.
• Query operators like phrase match, minus, and site.

Honest limitation: it is not AI-aware, so it covers Google's web index and misses most AI answers. There is no sentiment scoring, and results can get noisy. Treat it as your first line of defense, not the whole defense.

10. F5Bot

Best for: brands whose audience lives on Reddit, Hacker News, and Lobsters.

F5Bot watches Reddit, Hacker News, and Lobsters for your chosen keywords and emails you within minutes of a match. It is 100% free, with no credit card and nothing to install. For developer tools, B2B SaaS, and consumer products with strong community discussion, it is the cleanest free way to catch conversations early.

Key features:

• Keyword monitoring across Reddit, Hacker News, and Lobsters.
• Fast email alerts, usually within minutes.
• Completely free with no payment step.

Honest limitation: three sources only, with no sentiment, no time-series dashboard, and no historical search. Pair it with a wider tool if your audience spreads beyond those communities.

11. Talkwalker Free Trends

Best for: seeing what is trending right now as a companion to your main monitor.

Talkwalker is a large enterprise listening suite, and its Free Trends app is a free companion that surfaces real-time trending topics, hashtags, and search buzz. It is separate from the paid product line, so you can dip in whenever you want a read on what is rising. Think of it as a fast "what's hot" lens rather than a full monitor.

Key features:

• Real-time trending social topics.
• Hashtag and search filters.
• Buzz and spike visualization.

Honest limitation: this is trend discovery, not per-brand alert monitoring. It complements your core tool; it does not replace it.

12. Brand Radar (Ahrefs)

Best for: context only, so you know the category, because this one is not free.

Brand Radar is Ahrefs' AI visibility product, and it tracks brand mentions across ChatGPT, Perplexity, Gemini, and AI Overviews using a very large pool of AI search-backed prompts. We include it so you can see where the paid, SEO-leaning end of this category sits, since it belongs in a paid AI-visibility roundup rather than a free one.

Key features:

• Brand mention tracking across major AI engines.
• A large monitored prompt set.
• Share-of-mention reporting.

Honest limitation: there is no free tier for sustained use; it lives inside Ahrefs subscriptions. And accuracy in this young category is not solved. One independent test found its ChatGPT module counted 3 mentions where the real number was 123, a reminder to check any AI-mention tool against reality before you trust the number.

How to choose the right free tool

Feeling unsure which one to start with? Let's make it simple. Pick by the gap you most need to close.

• You want AI-aware mention tracking across ChatGPT, Perplexity, Gemini, Claude, and Google AI Mode, plus the content to close the gaps: start with DeepSmith.
• You want a wide two-week sweep across social, news, podcasts, and forums with sentiment: Brand24.
• You want a quick 28-day AEO awareness check inside a marketing stack: HubSpot AEO, or its free Grader for a one-time score.
• You want a Starter-level sentiment and share-of-voice read on a trial: Awario.
• You want a continuous free-tier monitor across the open web: BrandMentions.
• You want a no-signup buzz diagnostic today: Social Mention.
• You want a free always-on baseline that never expires: Google Alerts.
• You want free Reddit and Hacker News signal: F5Bot.
• You want to see what is trending right now: Talkwalker Free Trends.

Here is the honest short version. Every truly free tool watches the open web or social. Only the trial-based tools reach inside AI chatbots, and only DeepSmith connects that monitoring to producing the content that fixes the gaps. So a strong free stack often looks like this: Google Alerts and F5Bot running forever as your baseline, plus a trial of an AI-aware tool when you need to see what the chatbots are actually saying. That combination gives you free AI reputation monitoring you can stand up this week.

Start watching your brand in AI answers

You do not need a bigger budget to begin. You need one small first step. If you want to see how AI engines describe your brand and turn those gaps into on-brand content, start a free DeepSmith trial and let onboarding populate your prompts and competitors before you pay. Take it one tool at a time. Momentum matters more than a perfect stack.