Compare 12 options for tasks you use Undetectable AI for. Their feature coverage differs; check the summaries and plan details. Detect and humanize AI-generated text
| Tool | Pricing | Score | API | Ongoing free tier | Self-hosting |
|---|---|---|---|---|---|
| Undetectable AIthis one Detect and humanize AI-generated text | Freemium | 7 | Unknown | Unknown | No |
| Smodin AI writing platform combining detection, humanization, and quality checking | Freemium | 9 | Unknown | Unknown | No |
| DetectGPT Identify AI-written text while browsing the web | Free | 11 | Unknown | Unknown | No |
| WordAi AI content rewriter that generates unique variations at scale | Paid | 13 | Yes | Unknown | No |
| AI Detector Detect AI-generated text with semantic analysis | Freemium | 6 | Unknown | Yes | No |
| GPTKit Detect AI-generated text using 6 detection methods | Freemium | 9 | No | Yes | No |
| Spin Rewriter AI AI article rewriter creating unique, SEO-optimized content at scale | Freemium | 1 | Yes | No | No |
| AI Writer AI research assistant grounded in peer-reviewed science | Freemium | 1 | Unknown | Unknown | No |
| AI Text Watermark Remover Detect and remove traces from AI-generated text | Freemium | 0 | Unknown | Yes | No |
| Writefull AI writing assistant built for academic researchers and students | Freemium | 1 | Unknown | Unknown | No |
| Writer Enterprise AI for content creation and generation | Contact | 107 | Yes | No | No |
| Subtxt AI storytelling platform backed by narrative science | Paid | 1 | Unknown | Unknown | No |
| BooksAI Summarize books instantly and chat with AI about their ideas | Freemium | 2 | Unknown | Unknown | No |
Smodin integrates multiple AI writing tools into one workspace: detect AI-generated text, humanize AI output to pass detection systems, check plagiarism, and draft content with AI assistance. Supports over 100 languages and handles text via paste or file upload, serving students and professionals who need to verify, improve, and ensure authenticity in their writing.
DetectGPT is a browser extension that analyzes web content to identify text generated by AI models like ChatGPT and GPT-3. Right-click on any passage to scan for AI authorship with a single click, or enable automatic page scanning. Essential for content creators, educators, and researchers who need to verify whether online material was written by humans or machines.
WordAi uses machine learning to transform existing content into multiple distinct versions while preserving original meaning. It restructures sentences, enriches with relevant keywords, corrects grammar, and adjusts tone across different creativity levels—from conservative to aggressive rewrites. Built for marketers, agencies, and content creators who need to repurpose material quickly without sacrificing quality.
AI Detector scans written content to identify passages generated by ChatGPT, Claude, Gemini, and other language models. It highlights mixed content where AI and human writing coexist, helping creators verify authenticity. Built for marketers, agencies, bloggers, and content teams protecting brand voice and search rankings.
GPTKit analyzes text to identify whether it was written by humans or generated by AI models. The platform employs six different detection techniques to achieve approximately 93% accuracy and produces detailed authenticity reports. Free accounts can analyze up to 2048 characters per submission, with higher limits available for registered users.
Spin Rewriter uses semantic AI technology to transform source articles into dozens of unique variations designed for search engine visibility. Its text humanizer feature strips AI patterns that could trigger detection, making each rewrite read naturally. The platform enables marketers and content teams to scale SEO content production without the cost of hiring writers.
AI Writer is a research assistant designed for academic and professional writing, powered by a database of over 100 million scientific papers. Instead of generating unsourced content, it provides answers directly backed by peer-reviewed research with full citations. It's ideal for students, academics, and researchers who need to build evidence-based papers efficiently.
This tool identifies and removes hidden markers and artifacts embedded in AI-generated text from Claude, ChatGPT, Gemini, and other models. Free browser tools handle invisible Unicode characters and Markdown cleanup, while premium features include watermark removal through meaning-preserving rewrites and tone adjustment. Built for publishers, SEO teams, and agencies sanitizing AI drafts before publication.
Writefull delivers language feedback specifically trained on academic journals, helping researchers and students polish manuscripts and research papers. It offers paraphrasing, title generation, abstract refinement, and LaTeX support through integrations with Word and Overleaf. Designed by researchers for researchers, the platform prioritizes data privacy and does not use submitted text for model training.
Writer is a generative AI platform designed for enterprise teams to create, optimize, and deploy AI-powered content at scale. It combines large language models with brand guardrails, compliance controls, and integration capabilities for marketing, communications, and knowledge work. Built for organizations that need secure, customizable AI writing tools.
Subtxt combines the Dramatica framework with AI to help writers develop structurally sound stories. It analyzes character consistency, plot coherence, and thematic depth in real time, identifying narrative issues before they become rewrites. Built for novelists, screenwriters, and narrative designers who want both creative freedom and structural rigor.
BooksAI uses artificial intelligence to generate instant summaries of any book, then lets you have conversations about the content. You can search for book recommendations, access a library of pre-summarized titles, or upload your own texts. Rather than spending weeks reading, explore ideas through AI-powered dialogue at your own pace.