SpecialistAI content detection and a full writing toolkit in one place
SpecialistAI content detection and a full writing toolkit in one place
Checkstep records 14,587 monthly visits with -21.5% month-over-month growth and Free Trial, Contact for Pricing pricing. Undetectable AI records 3,113,403 monthly visits with +17.5% growth and Freemium pricing.

AI content moderation platform for trust and safety teams
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | checkstep.com | undetectable.ai |
| Pricing Model | Free Trial, Contact for Pricing | Freemium |
| Monthly Visits | 14.59K (14,587) | 3.11M (3,113,403) |
| MoM Traffic Delta | -4.01K (-21.5%) | +464.72K (+17.5%) |
| Primary Market & Share | 🇺🇸 United States (45.8%) | 🇺🇸 United States (31.4%) |
| Direct Visits / mo | 5.71K | 2.34M |
| User Rating | 4.3 | 3.8 |
| Supported Platforms | Website | Website |

AI content moderation platform for trust and safety teams
Scan and moderate text, images, video and audio in more than 100 languages from one integrated platform.
Define your own rules across all major abuse categories, then let the workflow and automation layer enforce them consistently.
Access leading moderation models, test which fit your policy, and swap providers seamlessly without rebuilding pipelines.
Blend automated ModBot screening with expert review so your team focuses on the cases that matter most.
Detect, humanize and verify AI content in one place
Scans up to 5,000 words at a time and highlights the specific sentences most likely to be flagged as machine-written, so you can see your text the way a detector sees it.
Rewrites AI-flagged passages with different sentence rhythms, vocabulary and tone, keeping your meaning while making the prose read like human writing.
Detectors for AI images, voice recordings, video and deepfakes, plus specialty document tools for checking whether a PDF or screenshot has been manipulated.
Detect and humanize directly inside Gmail, Google Docs or any web page without switching tabs.
SpecialistAI content detection and a full writing toolkit in one place
SpecialistAI content detection and a full writing toolkit in one place
SpecialistAI detection and writing verification built for schools and editors
SpecialistAI detection and writing verification built for schools and editors

Features a streamlined browser-based humanizer for quick rewrites, but lacks deeper multi-model detection scoring dashboards.
Features a streamlined browser-based humanizer for quick rewrites, but lacks deeper multi-model detection scoring dashboards.
Offers multiple AI humanizing engines and side-by-side editing, but can occasionally produce repetitive phrasing in longer essays.
Offers multiple AI humanizing engines and side-by-side editing, but can occasionally produce repetitive phrasing in longer essays.

Enterprise AI and plagiarism detection for content integrity

AI detector, plagiarism and content-quality checks in one scan
AI detector, plagiarism and content-quality checks in one scan
Provides dedicated humanization and detection checking in a single workflow, but has a smaller user community and fewer presets.
Provides dedicated humanization and detection checking in a single workflow, but has a smaller user community and fewer presets.

SpecialistFunctions as a broad academic writing workspace with humanizing features, but is less fine-tuned specifically for bypassing detectors.
SpecialistFunctions as a broad academic writing workspace with humanizing features, but is less fine-tuned specifically for bypassing detectors.
Provides an intuitive humanizer and writing assistant suite, but has fewer advanced customization parameters for strict detector bypass.
Provides an intuitive humanizer and writing assistant suite, but has fewer advanced customization parameters for strict detector bypass.

Delivers simple browser-based AI text humanization, but lacks the advanced batch processing and API access of Undetectable.
Delivers simple browser-based AI text humanization, but lacks the advanced batch processing and API access of Undetectable.

Detect AI-generated text and images with benchmark-tested accuracy
Detect AI-generated text and images with benchmark-tested accuracy
AI detector that highlights evidence, not just a score
AI detector that highlights evidence, not just a score