BSmeter vs Grammarly AI Detector
These two tools answer completely different questions. Grammarly's AI Detector asks "who — or what — wrote this text?", segmenting pasted prose and returning a percentage estimate of how much of it looks AI-generated. BSmeter asks "is this actually true?", transcribing a YouTube, TikTok, Reel or podcast link, pulling out every main claim, and scoring each one 0-100 and linking evidence for the weakest one (the 3 weakest on Basic and Premium). Authorship and accuracy are separate problems: AI can write something perfectly true, and a human can say something completely false on camera.
BSmeter vs Grammarly AI Detector: side by side
| Feature | BSmeter | Grammarly AI Detector |
|---|---|---|
| What it analyzes | Video and audio — YouTube, TikTok, Instagram Reels, podcasts via link, or via the browser extension on the video page | Written text you paste or upload, plus text inside the Grammarly editor |
| Detects AI-written prose | No — BSmeter does not score written text for AI authorship | Yes — this is its core job. Returns a percentage score, trained on large samples of human and AI text, built to work across ChatGPT, Gemini, Claude and others |
| Fact-checks the claims themselves | Yes — every main claim gets a 0-100 credibility score, with sources linked for the weakest one (the 3 weakest on Basic and Premium) | No — it is not a fact-checker. Grammarly's plagiarism and citation tools check sourcing and originality, which is a different question from truth |
| Synthetic media / deepfake signals | Not offered — BSmeter doesn't detect deepfakes or AI-generated media | Text only — no audio or video analysis |
| Provenance tracking while you write | None — BSmeter has no writing surface | Grammarly Authorship tracks whether text was typed, pasted, or AI-generated as you write, and can produce a shareable report to demonstrate your process |
| Pricing | Free tier; Basic $3.99/mo; Premium $8.99/mo | The web AI Detector is free to use. A Pro plan adds deeper insight, including sentence-level highlighting of what triggered a flag |
Where BSmeter wins
- Works on spoken video and audio, which Grammarly cannot read at all — paste a TikTok or podcast link and BSmeter transcribes it first
- Judges whether a statement is true, not who wrote it — each claim gets a 0-100 credibility score, with sources linked for the weakest one (the 3 weakest on Basic and Premium) so you can check the work yourself
- Flags logical fallacies and rhetorical moves in what's said, and syncs relevant viewer comments as you watch via the Chrome/Firefox extension
Where Grammarly AI Detector is stronger
- Genuinely free and frictionless for its core job — paste text into the browser, get an AI-likelihood percentage back, no account gymnastics
- Built and trained specifically for the authorship question across a wide range of AI writers, with explicit engineering effort spent on minimizing false positives on human writing
- Grammarly Authorship is a smarter answer to the problem than detection alone: instead of guessing after the fact, it records how a document was actually made — typed, pasted, or AI-generated — and lets a writer prove their process. Plus decades of grammar, clarity and tone tooling that BSmeter has no equivalent for
Anyone who needs to know whether the claims in a video, Reel, or podcast hold up — viewers vetting influencer or news content, researchers, journalists, and creators checking their own footage before they publish.
Writers, students, editors and teams who need to know whether a piece of text was AI-written, or who want to demonstrate their own writing process — plus everything Grammarly does for grammar, clarity and tone.
The verdict
This is not really a head-to-head — Grammarly's AI Detector is a text-authorship tool and BSmeter is a video fact-checker, and neither can do the other's job. If you want to know whether an essay was written by ChatGPT, use Grammarly; BSmeter will not help you. If you want to know whether the guy in the video is telling the truth, use BSmeter; Grammarly cannot even hear him. Plenty of people need both, and both have free tiers, so using them together costs nothing.
BSmeter vs Grammarly AI Detector: FAQ
Is BSmeter a Grammarly AI Detector alternative?▾
Honestly, no. If you came here looking for something that scores whether text was written by AI, BSmeter does not do that at all — Grammarly's free AI Detector is the right tool and you should just use it. BSmeter is a fact-checker for video and audio: it transcribes a link, extracts the claims, and scores each one 0-100, then searches for evidence on the weakest claim (the 3 weakest on Basic and Premium). Different question entirely.
Can Grammarly's AI Detector tell me if a video is AI-generated or a deepfake?▾
No. Grammarly's AI Detector works on written text only — it has no audio or video analysis. BSmeter doesn't detect deepfakes or AI-generated video either; it checks the claims a video makes. For the media itself, look for Content Credentials (C2PA) or a platform AI label, and trace the clip back to its original source.
If a video's script was written by AI, does that mean it's false?▾
No, and this is exactly why the two tools measure different things. AI can write a script that is entirely accurate, and a human can write one that is entirely made up. Authorship tells you where words came from; fact-checking tells you whether they're true. Grammarly answers the first question for text, BSmeter answers the second for video and audio.