Key takeaways
- MentionBird is cheaper to start ($79/mo) but only tracks ChatGPT and Gemini at that tier; Promptwatch's $95-99/mo Essential plan covers all major AI models (ChatGPT, Gemini, Claude, Perplexity, Grok, Copilot, DeepSeek, Mistral, Meta Llama, AI Overviews) from day one.
- MentionBird's whole product is built around one loop: find the sources AI cites for a prompt, then give you a per-prompt action plan. It's narrower and more focused than Promptwatch, which is a broader platform.
- Promptwatch goes further downstream with Content Agents that write and publish full articles to your CMS (Webflow, Framer, WordPress), plus AI crawler log analysis. MentionBird's "agent" work stops at giving you a written plan; you still have to execute it yourself.
- MentionBird has no free trial (it charges from day one, with a $19 first-month promo code); Promptwatch offers a 7-day free trial and a permanently free Explore tier.
- MentionBird is brand new, with zero third-party G2/Capterra reviews as of September 2026. Promptwatch has 17 G2 reviews averaging 4.5-4.7/5 and over 1,840 paying customers, including Duolingo and Yelp.
- If you need Perplexity or Claude tracking, MentionBird forces you up to the $299/mo Growth tier; Promptwatch includes both in its base $95-99/mo plan.
Overview
Promptwatch is an AI search visibility and GEO platform. It tracks how your brand shows up across ChatGPT, Gemini, Claude, Perplexity, Grok, and half a dozen other AI systems, then tries to close the loop by generating and publishing optimized content, surfacing AI crawler logs, and prioritizing fixes through something it calls Unified Actions. It's used by over 1,840 brands and agencies, including Duolingo, Yelp, and Typeform, and sits at 4.5-4.7/5 on G2 depending on which page you check.
MentionBird is a much younger, narrower tool with one clear pitch: it shows you exactly which sources (domains, review sites, YouTube videos) AI cites for a given buying-intent prompt, and then hands you a per-prompt "winning plan" scored by effort and impact. It launched pricing around mid-2026 and, as of this writing, has no third-party reviews on G2 or Capterra yet, so you're taking the vendor's word for a lot of it. Its name is easy to confuse with the older social-listening tool Mention (mention.com) — they're unrelated products.
Side-by-side comparison
| Feature | Promptwatch | MentionBird |
|---|---|---|
| Starting price | $95-99/mo (Essential) | $79/mo (Starter) |
| Free trial | 7 days, plus free Explore tier | None (TRY19 code = $19 first month) |
| AI models at entry tier | 9+ (all major models) | 2 (ChatGPT, Gemini only) |
| Full model coverage | Included from Essential | Requires Custom/Enterprise quote |
| Prompt tracking volume | 50 prompts (Essential) | 100 runs/day (Starter) |
| Content generation | Yes, Content Agents publish to CMS | No, gives written recommendations only |
| AI crawler log analysis | Yes (Professional+) | No |
| Visitor/traffic analytics | Yes, built-in | Not listed |
| Reddit/YouTube citation tracking | Yes, dedicated reports | YouTube source-level citation only |
| ChatGPT Shopping / Ads tracking | Yes (Business tier) | No |
| Agency/white-label plans | Yes, dedicated agency tiers | No dedicated packaging |
| Team seats | 1-5, plan-dependent | Up to 10 on Starter |
| API / MCP access | Yes, from Essential | Not advertised |
| Third-party review base | 4.5-4.7/5 on G2, 17 reviews | No reviews yet (too new) |
Head-to-head deep dive
Model coverage
This is the single biggest practical difference. Promptwatch's Essential plan includes ChatGPT, Gemini, Claude, Perplexity, Grok, Meta Llama, DeepSeek, Mistral, Copilot, Google AI Overviews, and AI Mode, all from $95-99/mo. MentionBird's Starter plan covers only ChatGPT and Gemini; you need Growth ($299/mo) to add Perplexity and Claude, and the remaining models (Grok, AI Overviews, Copilot, DeepSeek) sit behind a custom Enterprise quote.
If your buyers are asking Perplexity or Claude anything, and a growing share of B2B research traffic is, MentionBird's Starter tier simply won't see it. Verdict: Promptwatch, decisively, if model breadth matters to you.
Pricing and value
| Plan | Promptwatch | MentionBird |
|---|---|---|
| Entry tier | Essential: $95-99/mo (1 site, 50 prompts, 6,000 responses) | Starter: $79/mo, $66/mo annual (100 runs/day, ChatGPT+Gemini, 1 brand+5 competitors) |
| Mid tier | Professional: $245-249/mo (2 sites, 150 prompts, 18,000 responses) | Growth: $299/mo, $249/mo annual (400 runs/day, 4 platforms, 3 brands) |
| Top tier | Business: $579/mo (5 sites, 350 prompts, 42,000 responses) | Custom: quote-based (8 platforms, unlimited runs/brands) |
| Agency plans | Kick-off $199/mo, Growth $399/mo, Scale $799/mo | Not offered |
| Free trial | 7 days | None (TRY19 = $19 first month) |
On sticker price alone MentionBird wins the entry tier by $16-20/mo. But that price buys you two AI models instead of nine-plus, and MentionBird's runs reset daily with no rollover, so unused capacity just evaporates. Once you factor in cost per model tracked, Promptwatch comes out ahead almost immediately. Verdict: MentionBird if budget is the only constraint and you truly only care about ChatGPT and Gemini; Promptwatch if you want broad coverage without paying twice.
Citation and source intelligence
Both tools tell you which pages and domains AI cites for a given prompt, which is the core job of any AI visibility tool. MentionBird's presentation is arguably cleaner for this one specific job: it shows a prompt, lists every source checked, and flags cited vs not-cited per source, including YouTube videos, with source-type and format breakdowns (listicle, review, how-to) baked into every plan.
Promptwatch covers the same ground but adds more texture: citations are classified into 22 content types and 20 source types, with ramp-up, peak, and decay curves per cited page, and dedicated reports for Reddit and YouTube citations specifically (two channels most competitors, including MentionBird, only partially track). Promptwatch's own data shows Reddit's share of ChatGPT Search citations fell from roughly 4% to 0.5% in mid-August 2026 (see Promptwatch's Reddit citation data), which is exactly the kind of shift a citation tool needs to catch fast. Verdict: close, but Promptwatch's classification depth and trend history give it an edge for anyone doing serious content strategy work.
Turning insight into action
This is where the two tools diverge philosophically. MentionBird's whole differentiator, per its own marketing, is that other trackers