Alternatives · 2026
Best Originality.ai Alternatives in 2026
24 alternatives · 21 with a free plan · Updated
What are the best Originality.ai alternatives?
The best Originality.ai alternatives for AI API in 2026 are GPTZero (AI detector, paid), ZeroGPT (AI detection tool, freemium) and Detecting-AI (AI content detector, free). 21 of the 24 listed alternatives have a free or freemium plan.
Looking for something other than Originality.ai? Below are 24 alternatives in AI API, AI Content Detector and AI Detector, 23 of them closely matched, ranked by how much they overlap with Originality.ai. Originality.ai itself is paid. Each entry shows what the tool does, what it shares with Originality.ai, its key features and pricing.
What is Originality.ai?
ai checks text for AI writing and plagiarism. It is an AI content detector and plagiarism checker that also includes a grammar checker, a humanizer and an API, so publishers and writers can review copy before it goes live. Credits are the unit of billing, and one credit covers 100 words.
- Pricing
- Paid
Key features of Originality.ai
- Pay as you go One time on-demand pricing
- Get 3
- Need more? You can buy additional credits as needed under "Settings" in your account
- Unused credits expire 2 years after purchase
- Get 2
Originality.ai alternatives compared
| Tool | Pricing | Shared with Originality.ai | Match |
|---|---|---|---|
| Originality.ai | Paid | — | Original |
| GPTZero | Paid | AI API, AI Content Detector, AI Detector, AI Grammar Checker, AI Plagiarism Checker | Strong match |
| ZeroGPT | Freemium | AI API, AI Content Detector, AI Detector, AI Grammar Checker, AI Plagiarism Checker | Strong match |
| Detecting-AI | Free | AI API, AI Content Detector, AI Detector, Humanizer AI | Strong match |
| Rephrasy | Freemium | AI API, AI Content Detector, AI Plagiarism Checker, Humanizer AI | Strong match |
| PlagiarismSearch.com | Paid | AI API, AI Content Detector, AI Grammar Checker, AI Plagiarism Checker | Strong match |
Top 24 alternatives to Originality.ai
- #1
GPTZero is an AI detector that scans text to flag content likely written by models like ChatGPT, with options for individuals and teams.
In common with Originality.ai: AI API, AI Content Detector, AI Detector, AI Grammar Checker, AI Plagiarism Checker
- AI detector for identifying text generated by AI models like ChatGPT
Pricing: paid, same as Originality.ai
- #2
ZeroGPT is an AI detection tool that checks text for AI writing, plus summarizer, paraphraser, grammar and plagiarism checks.
In common with Originality.ai: AI API, AI Content Detector, AI Detector, AI Grammar Checker, AI Plagiarism Checker
Pricing: freemium (free plan + paid upgrades), a cheaper way in than Originality.ai (paid)
- #3
Detecting-AI is an AI content detector that flags AI-generated text, with a free plan that allows 100 detections a day.
In common with Originality.ai: AI API, AI Content Detector, AI Detector, Humanizer AI
Pricing: free, a cheaper way in than Originality.ai (paid)
- #4
Rephrasy is an AI humanizer and AI content detector that rewrites AI-generated text and checks whether it reads as machine-written.
In common with Originality.ai: AI API, AI Content Detector, AI Plagiarism Checker, Humanizer AI
- AI humanizer and detector to bypass AI detection and create undetectable content
Pricing: freemium (free plan + paid upgrades), a cheaper way in than Originality.ai (paid)
- #5
Online plagiarism checker and AI content detector that scans submitted text for copied passages and AI-generated writing.
In common with Originality.ai: AI API, AI Content Detector, AI Grammar Checker, AI Plagiarism Checker
- Online plagiarism and AI content checker with various text analysis tools
Pricing: paid, same as Originality.ai
- #6
AI humanizer that rewrites AI-generated text to sound more human, with an AI detector and plagiarism checker.
In common with Originality.ai: AI Content Detector, AI Detector, AI Plagiarism Checker, Humanizer AI
- BypassAI humanizes AI text
Pricing: free, a cheaper way in than Originality.ai (paid)
- #7
Copyleaks is a plagiarism checker and AI content detector that scans text in multiple languages and connects to other platforms through an API.
In common with Originality.ai: AI API, AI Content Detector, AI Detector
- Comprehensive detection of plagiarism and AI-generated content
- Support for multiple languages
- Integration with various platforms via API and LMS
Pricing: free, a cheaper way in than Originality.ai (paid)
- #8
Online plagiarism checker and AI content detector that compares your text with sources and gives a similarity score.
In common with Originality.ai: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI
- Real-Time Check
- Pay as you go 1 Document Check
- Additional Services for Educators 20 extra documents / month
Pricing: free, a cheaper way in than Originality.ai (paid)
- #9
SideKicker AI is an AI writing assistant that humanizes AI-generated text, detects AI patterns, and checks plagiarism in one place.
In common with Originality.ai: AI Content Detector, AI Detector, AI Plagiarism Checker, Humanizer AI
Pricing: free, a cheaper way in than Originality.ai (paid)
- #10
AI translation tool for text, documents, images and scanned PDFs in over 100 languages, with grammar correction and text-to-speech.
In common with Originality.ai: AI API, AI Detector, AI Grammar Checker, Humanizer AI
- AI-powered translation software with 100+ languages
Pricing: free, a cheaper way in than Originality.ai (paid)
- #11
AI humanizer that rewrites text to get past AI detection checks, with a free tier of 500 words and paid plans for students and writers.
In common with Originality.ai: AI Content Detector, AI Detector, AI Plagiarism Checker, Humanizer AI
- Words)
- Try core features for free
- Basic 20
Pricing: free, a cheaper way in than Originality.ai (paid)
- #12
AI content detector that checks text, documents, and PDFs for AI-written text, with a humanizer plus plagiarism and readability checks.
In common with Originality.ai: AI Content Detector, AI Detector, AI Plagiarism Checker, Humanizer AI
- It features an AI Checker
- Plagiarism Checker
Pricing: free, a cheaper way in than Originality.ai (paid)
- #13
Winston AI is an AI content detector and plagiarism checker that estimates whether text or images were generated by AI.
In common with Originality.ai: AI API, AI Content Detector, AI Detector
- Free 2
Pricing: free, a cheaper way in than Originality.ai (paid)
- #14
BypassGPT is an AI humanizer that rewrites AI-generated text to help it pass AI content detectors, with multilingual paraphrasing and SEO-friendly output.
In common with Originality.ai: AI API, AI Content Detector, Humanizer AI
- AI humanizer to rewrite AI-generated text and bypass AI detection
Pricing: free, a cheaper way in than Originality.ai (paid)
- #15
Surfer is an SEO content optimization tool that uses AI for keyword research, writing, and content auditing.
In common with Originality.ai: AI API, AI Detector, AI Plagiarism Checker, Humanizer AI
- Comprehensive suite of SEO tools
- AI-powered content generation and optimization
- Real-time feedback on content quality
Pricing: free, a cheaper way in than Originality.ai (paid)
- #16G
Gptsafe is an AI content detector that estimates whether text was AI-generated and can rewrite it to sound more human.
In common with Originality.ai: AI Content Detector, AI Detector, AI Plagiarism Checker, Humanizer AI
- High accuracy rate (95%) in detecting AI-generated text
- User-friendly interface with simple steps for analysis
- Option to rewrite AI-generated text to sound more human-like
Pricing: free, a cheaper way in than Originality.ai (paid)
- #17
AI plagiarism remover that rewrites pasted text to make it unique, with a plagiarism checker included in paid plans.
In common with Originality.ai: AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI
- AI-based tool to remove plagiarism and make content unique
Pricing: paid, same as Originality.ai
- #18
Humanizey is an AI humanizer that rewrites pasted text to help it read naturally and pass AI detection checks, and it offers freemium pricing.
In common with Originality.ai: AI Content Detector, AI Detector, AI Plagiarism Checker, Humanizer AI
- AI humanizer to bypass AI detection by rewriting text
Pricing: freemium (free plan + paid upgrades), a cheaper way in than Originality.ai (paid)
- #19
AI rewriter, grammar checker and AI detector that runs as a native Mac and Windows app, working inside any application you already use.
In common with Originality.ai: AI Content Detector, AI Detector, AI Grammar Checker, AI Plagiarism Checker
- Outperforms Grammarly and QuillBot in AI detection and writing assistance
- Native app for Mac & Windows
- Offers instant rewrites
Pricing: free, a cheaper way in than Originality.ai (paid)
- #20
Scribbr is an academic writing platform offering proofreading, plagiarism checking, citation generation, and AI paraphrasing tools for students and researchers.
In common with Originality.ai: AI Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI
- Comprehensive suite of tools for academic writing
- Professional proofreading and editing services
- Accurate plagiarism detection
Pricing: free, a cheaper way in than Originality.ai (paid)
- #21
Essayget is an AI essay writer and humanizer that rewrites AI text, adds citations, and offers a free Turnitin AI detection report.
In common with Originality.ai: AI Content Detector, AI Detector, AI Plagiarism Checker, Humanizer AI
- Bypasses top AI detectors
- Provides plagiarism-free content
- Generates accurate citations and reference pages
Pricing: free, a cheaper way in than Originality.ai (paid)
- #22
AI or Not is an AI image and audio detector that checks if content was AI-generated, with API access for fraud and misinformation checks.
In common with Originality.ai: AI API, AI Content Detector, AI Detector
- Detects AI-generated content in multiple formats (images
- Helps prevent fraud and misinformation
- Offers API access for integration into existing systems
Pricing: free, a cheaper way in than Originality.ai (paid)
- #23
Free AI text detector that flags suspicious lines in essays and drafts, with no sign-up needed for quick checks.
In common with Originality.ai: AI Content Detector, AI Detector, AI Plagiarism Checker, Humanizer AI
- AIScanner is a free AI text detector built for quick and practical checks
- You can start using it immediately since registration is not required
- For students and educators
Pricing: free, a cheaper way in than Originality.ai (paid)
- #24
AI security software with LLM firewalls and AI governance tools for controlling how businesses use large language models.
In common with Originality.ai: AI API, AI Content Detector, AI Detector, AI Plagiarism Checker
Pricing: freemium (free plan + paid upgrades), a cheaper way in than Originality.ai (paid)
How we picked these Originality.ai alternatives
We rank tools by how closely they match Originality.ai: tools that share more of its categories rank first, then tools whose main category, tags and description overlap with it, then community votes and views. Pricing type and features come from each product's SoftwareVital listing. Admins can pin or remove tools from this list.
Frequently asked questions
What are the best alternatives to Originality.ai in 2026?
The closest alternatives to Originality.ai are GPTZero, ZeroGPT, Detecting-AI, Rephrasy and PlagiarismSearch.com. They are ranked by how many categories and tags they share with Originality.ai and how similar their descriptions are, then by community votes and views on SoftwareVital.
What is the closest alternative to Originality.ai?
GPTZero is the closest match because it shares AI API, AI Content Detector and AI Detector with Originality.ai. It is paid.
Are there free alternatives to Originality.ai?
Yes. 21 of the 24 alternatives have a free or freemium plan, including ZeroGPT (freemium), Detecting-AI (free), Rephrasy (freemium), Bypass AI (free) and Copyleaks (free). Originality.ai is paid.
Which Originality.ai alternatives are paid or enterprise tools?
GPTZero (paid), PlagiarismSearch.com (paid) and Plagiarism Remover (paid) use paid or enterprise pricing, which usually means more support and admin options for teams.
How does Originality.ai compare to GPTZero?
GPTZero overlaps with Originality.ai in AI API, AI Content Detector and AI Detector. Its listed features include AI detector for identifying text generated by AI models like ChatGPT. Pricing: paid, same as Originality.ai. Open the side-by-side compare page for a full breakdown.
What category is Originality.ai in?
Originality.ai is listed under AI API on SoftwareVital. Browse that category to see more tools in the same group.