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ZeroGPT.ccMost similar to AI Detector by Buildly in what it does, its category and its price.
Visit (opens ZeroGPT.cc in a new tab)Need a free plan?
CopyleaksHas a free plan, rated 4.2 out of 5.
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Txt MuseFrom $21/mo, the lowest starting price here.
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DecheckerRated 3.7 out of 5 in our review, against 2.5 for AI Detector by Buildly.
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At a glance
Green means better than AI Detector by Buildly, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 AI Detector by BuildlyBaseline | 2.5 | Free | Yes | Free AI text detection with sentence-level highlighting, in a category that does not work. | |
| ZeroGPT.cc | 2.9+0.4 | Free | Yes | Paste text, get sentence-by-sentence AI-detection with color-coded highlighting - free, unlimited checks against GPT, Claude, Gemini, and more, no relation to zerogpt.com. | vs AI Detector by Buildly |
 ZeroGPT | 3.5+1.0 | Free | Yes | AI detection across text, image and video, with sentence-level highlighting. | vs AI Detector by Buildly |
| Dechecker | 3.7+1.2 | Free | Yes | Sentence-level AI detection across ChatGPT, Claude and Gemini output, paired with one-click humanization rewrites. | vs AI Detector by Buildly |
 Winston AI | 3.5+1.0 | Free | Yes | AI content and image detection claimed accurate 99.98% of the time - sentence-level highlights, plagiarism checks, and deepfake detection in one report. | vs AI Detector by Buildly |
 AIssistify | 3.5+1.0 | Free | Yes | Inspects a draft for hidden character artifacts and AI-style tells, shows the evidence, then rewrites toward your own voice. | vs AI Detector by Buildly |
| Copyleaks | 4.2+1.7 | $9.99/mo | Yes | Copyleaks scans text and images for plagiarism and AI-generated content across dozens of languages for schools and businesses. | vs AI Detector by Buildly |
| Txt Muse | 3.4+0.9 | $21/mo | No | An AI text editor that drafts your first version from a title and description, then offers a dozen different ways to rewrite any section you highlight. | vs AI Detector by Buildly |
 WordAi | 3.0+0.5 | $27/mo | No | Rewrites an article into up to a thousand variations, in bulk, through an API. | vs AI Detector by Buildly |
The alternatives in detail
In order of how closely each one matches AI Detector by Buildly.
ZeroGPT.cc
2.9Free
vs AI Detector by Buildly+0.4
Paste text, get sentence-by-sentence AI-detection with color-coded highlighting - free, unlimited checks against GPT, Claude, Gemini, and more, no relation to zerogpt.com.
- Sentence-by-sentence AI-detection with color-coded highlighting
- Readability scoring alongside detection
- Multi-model detection - GPT, Claude, Gemini, and more
Genuinely free and unlimited, no paywall on core detection
AI-detection accuracy is inherently imperfect and improves-then-degrades as generative models evolve
ZeroGPT
3.5Free
vs AI Detector by Buildly+1.0
AI detection across text, image and video, with sentence-level highlighting.
- AI text detection with sentence-level highlighting
- DeepAnalyse multi-stage detection method
- AI image and video detectors
Sentence highlighting supports a conversation rather than an accusation
AI detection has a documented false-positive problem on non-native English
Dechecker
3.7Free
vs AI Detector by Buildly+1.2
Sentence-level AI detection across ChatGPT, Claude and Gemini output, paired with one-click humanization rewrites.
- Sentence-level AI detection across ChatGPT, Claude and Gemini output
- One-click humanization rewrite suggestions
- Bulk file upload and batch analysis
Sentence-level flagging is more actionable than one whole-document score
AI detectors carry real false-positive/false-negative rates industry-wide
Winston AI
3.5Free
vs AI Detector by Buildly+1.0
AI content and image detection claimed accurate 99.98% of the time - sentence-level highlights, plagiarism checks, and deepfake detection in one report.
- AI text detection claimed 99.98% accurate across major LLMs
- AI-generated image and deepfake detection
- Plagiarism checking alongside AI detection
Free tier available with no credit card required
Paid tier pricing isn't shown on the homepage
AIssistify
3.5Free
vs AI Detector by Buildly+1.0
Inspects a draft for hidden character artifacts and AI-style tells, shows the evidence, then rewrites toward your own voice.
- Detects zero-width spaces and mixed-script lookalike characters
- Flags stylistic cues that read as machine-generated
- Reviewable evidence behind every flag
Hidden-character detection also works on documents you receive, not just your own
The rewriting capability overlaps with tools sold for evading AI detection
Copyleaks
4.2$9.99/mo
vs AI Detector by Buildly+1.7
Copyleaks scans text and images for plagiarism and AI-generated content across dozens of languages for schools and businesses.
- Combined plagiarism and AI-content detection in one scan
- Multi-language support across dozens of languages
- Image-based AI detection alongside text scanning
Combines plagiarism and AI-detection in one subscription instead of two tools
Credit-based pricing gets confusing to estimate for high-volume users
Txt Muse
3.4$21/mo
vs AI Detector by Buildly+0.9
An AI text editor that drafts your first version from a title and description, then offers a dozen different ways to rewrite any section you highlight.
- AI-Assisted Drafts from a title and brief description
- Autocomplete for sentence-level suggestions
- Text Shaping - a dozen rewrite options per highlighted passage
Text Shaping offers multiple genuine rewrite options, not just one
Free trial caps AI uses per day rather than offering an ongoing free tier
WordAi
3.0$27/mo
vs AI Detector by Buildly+0.5
Rewrites an article into up to a thousand variations, in bulk, through an API.
- Sentence restructuring with meaning preserved
- Up to 1,000 variations per article
- Bulk rewriting and downloading
Bulk and API access for pipeline use rather than one-off editing
Advertises passing AI detection and Copyscape, aimed at checkers not readers
FAQ
Questions people ask
Is AI Detector by Buildly free?
AI Detector by Buildly has a free plan.
What is the best free alternative to AI Detector by Buildly?
Copyleaks is the highest-rated alternative here with a free plan (4.2 out of 5). Other free options: Dechecker, ZeroGPT, Winston AI.
What is the cheapest alternative to AI Detector by Buildly?
Among paid plans, Copyleaks has the lowest starting price (from $9.99/mo). If you need it free, start with Copyleaks.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.