TruthScan vs. Grammarly: Which AI Detector Works Best?

Grammarly’s been round for over a decade — lengthy earlier than the AI increase reshaped how we write and detect writing. It began as a easy grammar checker and slowly developed into an all-in-one writing assistant. And now, like nearly each main writing software on the market, it’s bought an AI detector baked in.

In the meantime, TruthScan isn’t making an attempt to be a writing assistant. It’s an AI detection suite — constructed particularly to determine AI-generated content material throughout textual content, photographs, audio, and video. It doesn’t enable you to write higher; it helps you confirm what’s actual.

So if you put these two aspect by aspect — a conventional enhancing software versus a full-scale AI detection platform — you get a transparent image of the place the trade is heading. However does Grammarly’s detector really maintain its personal towards a devoted system like TruthScan? Let’s discover out.

What’s TruthScan?

TruthScan is a complete AI detection suite, designed to identify artificial content material throughout each main medium. It’s not only for textual content — it detects AI photographs, movies, voice clones, and even deepfakes. 

However for this comparability, we’ll concentrate on its AI Textual content Detector, which boasts over 99% accuracy and a sub-100 millisecond detection velocity. It’s constructed for scale — utilized by publishers, educators, and companies to make sure authenticity and transparency in a world the place AI-generated writing is all over the place.

What units TruthScan aside isn’t simply accuracy — it’s context. It doesn’t depend on a single sign (like predictability or perplexity). As an alternative, it cross-analyzes linguistic rhythm, sentence variation, and coherence patterns to determine whether or not one thing was probably written by a human or a mannequin.

Briefly: TruthScan is forensic, quick, and constructed for reality verification.

What’s Grammarly?

Grammarly doesn’t want a lot of an introduction — it’s one of the crucial broadly used writing instruments on this planet. What began as a grammar and readability checker is now an AI-powered writing assistant that helps you write, edit, and optimize textual content for tone, type, and professionalism.

Its AI detector is certainly one of its latest additions. It was launched in response to the explosion of AI-generated writing from instruments like ChatGPT, Claude, and Gemini. Grammarly’s detector scans for telltale indicators of AI — uniform phrasing, lack of rhythm, and over-structured sentence move.

It’s easy to make use of: paste textual content, click on “detect,” and it offers a chance rating (e.g., “probably AI-written” or “probably human-written”). It’s clearly constructed for informal customers — college students, professionals, and on a regular basis writers who simply need to double-check if one thing sounds too AI-like.

However not like TruthScan, Grammarly’s AI detector feels extra like an add-on function than a devoted product. It’s quick, sure, however restricted. You don’t get sentence-by-sentence evaluation, breakdowns, or superior reporting. It’s AI detection in its easiest kind — surface-level, however accessible.

TruthScan vs. Grammarly: AI Detection

Check #1

AI-Generated Textual content:

TruthScan: Accurately recognized textual content as machine-generated.
AI Probability: 89%

Grammarly: Accurately recognized textual content as machine-generated.
AI Probability: 100%

Check #2

AI-Generated Textual content:

TruthScan: Accurately recognized textual content as machine-generated.
AI Probability: 99%

Grammarly: Accurately recognized textual content as machine-generated.
AI Probability: 86%

Check #3

AI-Generated Textual content:

TruthScan: Accurately recognized textual content as machine-generated.
AI Probability: 90%

Grammarly: Accurately recognized textual content as machine-generated.
AI Probability: 100%

Check #4

AI-Generated Textual content:

TruthScan: Accurately recognized textual content as machine-generated.
AI Probability: 99%

Grammarly: Accurately recognized textual content as machine-generated.
AI Probability: 100%

Check #5

AI-Generated Textual content:

TruthScan: Accurately recognized textual content as machine-generated.
AI Probability: 93%

Grammarly: Accurately recognized textual content as machine-generated.
AI Probability: 100%

Check #6

AI-Generated Textual content:

TruthScan: Accurately recognized textual content as machine-generated.
AI Probability: 99%

Grammarly: Accurately recognized textual content as machine-generated.
AI Probability: 100%

Common Rating

The Backside Line

After placing each detectors via the identical set of AI-generated writing samples, the outcomes had been surprisingly shut — and, truthfully, spectacular for each side.

Grammarly’s AI Detector got here out barely forward, scoring 97.67% correctness, whereas TruthScan adopted intently at 94.83%. However what actually stood out wasn’t the small hole — it’s that each instruments appropriately recognized each single check case as AI-generated. That type of consistency is uncommon.

Grammarly continues to show that it’s greater than only a grammar checker. Its AI detection has quietly developed into one thing genuinely dependable — easy to make use of, quick, and impressively correct for an built-in function.

TruthScan, in the meantime, lives as much as its title. It won’t have edged out Grammarly within the uncooked rating this time, however it matched it in dependability. It’s forensic, clear, and clearly constructed for skilled verification — the type of software that scales past on a regular basis use.

On the finish of the day, each detectors bought the job executed — effectively, precisely, and with out false positives. When you’re checking essays, articles, or skilled paperwork, you possibly can’t actually go fallacious with both.

However taken collectively?

TruthScan and Grammarly present that AI detection in 2025 is lastly catching as much as AI writing — and that’s a win for everybody.