Generate Quality Content
Start by generating text using high-quality AI generators like the latest models from OpenAI or Claude. Focus on writing quality content first. Avoid excessive listing or numerous headlines as they can trigger AI detection.
Clean Your Text
Remove any markdown formatting and HTML tags. StealthWriter works best with plain text, so ensure your content is clean and formatted simply.
Select Your Model
Choose between Ninja or Ghost models. Ghost generally provides higher quality results and better detection scores, while Ninja offers a good balance of speed and performance.
Choose Humanization Level
Select a level from 1 to 10. Level 1 provides basic humanization (similar to paraphrasing), while level 10 offers advanced humanization. We recommend starting with level 7 and adjusting as needed. Lower levels typically have better grammar.
Humanize Your Text
Click the Humanize button to process your text. You'll see the humanized content with a predicted AI detection score. The tool highlights sentences based on their likelihood of being detected as AI-generated.
Test Your Results
Test your text on various AI detection tools such as GPTZero, Originality AI, Winston AI, Turnitin, ZeroGPT, and others. Always ensure your detection score is low in StealthWriter before testing elsewhere.
Experiment and Refine
Try different levels, models, and input text variations. Each text is unique and may require a different approach. Both AI detectors and humanizers have limitations, so some trial and error may be needed.
Need Help? Contact us via live chat or join our Discord community for support.
v4.2.6 (04/10/2025)
- AI detector algorithm update and tuning for improved accuracy
- Improved on the humanizer
v4.2.5 (02/10/2025)
- Further optimized humanization algorithm to ensure compatibility with the latest Originality AI update
- Updated strict AI detector to detect content from newest AI models including Grok 4, GPT-5, and Claude Sonnet 4.5
v4.2.4 (22/09/2025)
- Changed pricing structure, instead of deducting words, we deduct based on humanization attempts.
- New plan breakdown (humanization attempts and limits):
- Free: Ghost Mini 10/day; Ghost Pro not included; Max words per humanization: 1,000; Generator access: No; Major AI detector verification: Yes; Priority support: No.
- Basic: Ghost Mini unlimited; Ghost Pro 20/day; Max words per humanization: 2,000; Generator access: Yes; Major AI detector verification: Yes; Priority support: No.
- Standard: Ghost Mini unlimited; Ghost Pro 50/day; Max words per humanization: 3,000; Generator access: Yes; Major AI detector verification: Yes; Priority support: No.
- Premium: Ghost Mini unlimited; Ghost Pro unlimited; Max words per humanization: 5,000; Generator access: Yes; Major AI detector verification: Yes; Priority support: Yes. (Best Option)
- UI changes
- Fixed sign up and login errors
- Performance updates
v4.2.3 (15/09/2025)
- Improvements on detector mode (strict) in Humanizer and Detector. (strict mode is better now)
v4.2.2 (06/09/2025)
- Changed AI detection sensitivity.
- Detector mode in Humanizer changed to Easy by default.
- You can now edit the original sentence before reloading alternatives.
v4.2.1 (06/09/2025)
- Improved AI detection
- Minor bug fixes
v4.2 (31/08/2025)
- Optimized humanization algorithms for more natural, human-like content generation
v4.1 (30/08/2025)
- Released Ghost 4.7 Pro & Ghost 4.7 Mini
- Ghost 4.7: Enhanced version of Ghost 4.6 with significantly improved quality and undetectability
v4.0 (27/08/2025)
- Removed all old models and introduced new Ghost 4.6 Pro & Ghost 4.6 Mini models
- New models are significantly improved and bypass humanizer detectors more effectively
- Faster processing speeds across all features
- Reduced errors throughout the platform for better stability
- Major improvements on AI detection accuracy
- Better text format understanding and preservation
- Multiple bug fixes for enhanced reliability
- Increased text limit per request for all plans - check pricing page for details
- UI improvements for better user experience
- Added new guide for achieving best results
- Significantly improved text styling - styles now produce much better results
- Added "Improve Readability" style which enhances overall text quality
- Refined humanization levels for better control
- Removed editor feature - focusing on core functionality
- Simplified advanced options - the model now handles many settings automatically
- Added sentence analysis section showing top AI and human sentences
v3.9 (08/08/2025)
- Massive performance improvements across the platform
- AI Detector is now 2x faster for quicker analysis
- Humanizer processing speed increased by 2x for faster results
- Multiple bug fixes for enhanced stability
- Reduced errors throughout the application for smoother user experience
v3.8 (16/06/2025)
- Added Style Selection feature to humanizer - change the writing style of your text during humanization!
- New available styles: Academic, Formal, Simple, Casual, University Professor, University Student, High School Student
- Added helpful tooltip explaining that style changes take longer than normal humanization
- Improved user interface with better guidance and tooltips for all features
v3.7 (14/06/2025)
- Released new Ghost 4.3 & Ninja 4.3 Models - optimized for quality and SEO content creation!
- 4.3 Models: Perfect for high-quality, readable content but may be detected by advanced AI detectors.
- Released new Ghost 4.4 & Ninja 4.4 Models - optimized for maximum undetectability!
- 4.4 Models: Designed to bypass even the most advanced AI detection systems.
- Enhanced model stability and reduced processing time across all new versions.
v3.6 (11/06/2025)
- Added new Ghost 4.2 & Ninja 4.2 Models - our most advanced models yet!
- Bug Fixes across the platform.
- Improvement on AI Detector accuracy and performance.
- Improved server stability for better reliability.
v3.5 (06/05/2025)
- Major model improvements: All models now produce higher quality, more readable, and grammatically correct text.
- Brand new, faster, and more accurate AI detector!
- Alternatives now show their impact on the AI score and provide more coherent sentences.
- You can now choose a specific model and level when picking alternatives or using "Humanize More".
- Better sentence highlight colors based on impact.
- UI optimizations for a smoother experience.
- Fixed password reset bug.
- Improved server stability—no more unexpected errors!
v3.4 (12/02/2025)
- Added new model: MultiLang 3.0, a humanizer that supports multiple languages.
- Bug Fixes like the Verification Captcha.
- UI changes to Detector page.
v3.3 (30/01/2025)
- Each model now provides 4 alternatives to choose from.
- Optimized all for better grammar and formating.
- Optimized 3.2 models to perform better on Turnitin and Copyleaks.
v3.2 (24/01/2025)
- Added new models: Ninja 3.2, Ghost: 3.2, improved versions of existing models (Better formating + writing styles).
- Removed the following models: Ninja 3.0, Ghost: 3.0, Ninja Mix, Ghost Mix, Ninja 3.1, Ghost 3.1.
- Optimized Ninja 3.2 and Ghost 3.2 to bypass Copyleaks and Turnitin more effectively.
- Improved performance.
v3.1 (21/01/2025)
- Added new models: Ninja 3.0, Ninja 3.1, Ninja Mix, Ghost 3.0, Ghost 3.1, and Ghost Mix.
- Added new algorithm to bypass humanizers detectors like GPTZero.
- Bug fixes on existing models.
- Fixed a bug where humanizer outputs 5x more words than the original text.
- Fixed a bug where the humanizer messes up the text structure.
- Improved performance for AI detector.
v2.7 (10/11/2024)
- Made Ghost words unlimited for premium plan users
v2.6 (17/10/2024)
- Updated the UI/UX of the Humanizer
- Updated the UI/UX of the Detector
- Scan content commercial AI detectors using API keys
- Added a new AI detector (Copyleaks)
- Added a new AI detector (GPTZero)
- Added a new AI detector (ZeroGPT)
- Added a new AI detector (Originality AI)
- Updated the UI/UX of the StealthWriter Detector (progress bar)
v2.5.5 (03/10/2024)
- Updates & Bug fixes on Ghost 2.0 & Ninja 2.0
- Added support for all languages in the Humanizer
- Added support for all languages in the Detector
v2.5 (28/09/2024)
- Added Ghost 2.0 model - our best model so far
- Bug fixes on Ghost 1.0 & Ninja 1.0
- New Updated Ninja 2.0 model
- Bug fixes like word limits, auto rehumaizing, etc
- Bug fix where you get a message saying you can't humanize a text because it's less than 50 characters
- Bug fix where the wrong text is humanized
- Drastic improve in quality for all models
- Reintroduced Find Most undetectable draft button, it's enabled by default - disable it for better control
v2.1 (24/09/2024)
- Update & Bug fixes on Ninja V2
- Updated Rehumanize all AI sentences button
- Updated Rehumanize AI sentence button in drop down
- Added live chat support
- Bug fixes
v2.0.1 (23/09/2024)
- Added new dashboard features
- Improved performance of data loading
- Fixed bug in user profile update
- Added new AI humanizer model (Ninja V2)
- Updated the AI detector (increase accuracy) - lower false positives
- Added back Old Ninja & Ghost models + Performance optimization on both
- Fixed a bug in ghost that cuts the text in the middle of a sentence
- Improved UI/UX of the dashboard
- Added a How to guide
- Improved detection scores on Turnitin
- Improved detection scores on Originality AI
- Improved detection scores on Winston AI
- Improved detection scores on CopyLeaks
- Improved detection scores on GPTZero
- Improved detection scores on ZeroGPT
- Added a Humanize All AI Sentences button