Aithor
AI-powered writing platform with free detector to identify AI-generated text in essays and content.
What is Aithor?
Aithor is an Estonia-based AI technology company that offers both AI writing tools and a free AI Detector. The AI Detector, launched February 21, 2026, is a web-based tool designed to help users assess whether written content may include AI-generated text. It uses the latest algorithms to detect patterns, structures, and phrases most commonly associated with AI-written content. The tool is aimed at educators, students, and content creators who need to verify the authenticity of written work.
Best for: Free basic detection · Multi-language users · Quick checks

Developer Stack Fit
Quick read on where Aithor fits in a software team's AI stack. Validate final fit against your codebase, data policy, and deployment model.
- Stack layer
- Secondary/general AI
- Deployment model
- Cloud SaaS
- Open-source status
- Not confirmed
- API support
- Not a primary API tool
- MCP support
- No MCP signal found
- Security posture
- Stronger controls worth validating
- Best use case
- Free basic detection
Key Features
- 01
Free AI text detection
Free AI detection for text
- 02
Probability scoring for AI-generated content
Highlights AI-probable sections
- 03
Highlights specific sections flagged as AI-written
Multi-language support
- 04
Supports multiple AI models (ChatGPT, Gemini, Claude, etc.)
A core writing capability that teams use daily.
- 05
Multi-language interface (50+ languages)
A core writing capability that teams use daily.
- 06
Essay writing tools (separate product)
A core writing capability that teams use daily.
- 07
AI Humanizer for content refinement (separate product)
A core writing capability that teams use daily.
Pros & Cons
What stands out
- Completely free to use
- Simple web-based interface
- Multi-language support (50+)
- No signup required for basic use
- Helps educators verify original work
Watch outs
- Detection accuracy varies by content type
- Limited additional features beyond detection
- May produce false positives/negatives
- Relatively new tool with limited track record
Pricing Plans
Aithor Pricing
Choose the perfect plan for your needs. All plans include our core features with different usage limits and advanced capabilities.
Free
Need a Custom Solution?
Looking for enterprise features or custom pricing? Contact Aithor directly for tailored solutions.
Contact SalesMost teams land on the Free plan.
Alternatives
FAQ
What is Aithor and how does it work?
Aithor is a writing tool that ai-powered writing platform with free detector to identify ai-generated text in essays and content.. It uses AI to help users improve productivity through analyzing input and generating relevant output.
Is Aithor free to use?
Aithor offers a completely free plan. You can get started without paying anything.
Does Aithor have a free trial?
Yes — Free to try with no time limit.
What can Aithor do?
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Aithor
Free