# HumanizeGo > HumanizeGo is an AI humanizer and free AI detector. It rewrites AI-generated text (ChatGPT, Claude, Gemini) into natural, human-sounding writing while keeping meaning, facts and formatting, and it scores text for AI likelihood with sentence-level highlighting. Key facts: - AI Humanizer: 3 rewrite levels (Quality, Balanced, Max), 9 tones, 6 readability levels, 50+ languages, keeps headings, lists and citations. - AI Detector: overall AI probability, per-sentence highlighting and an explanation of the signals. Free without sign-up. - Free plan: 1,000 words per month. Paid plans from $4.99/month billed yearly: Basic 5,000, Pro 15,000, Ultra 40,000 words per month. - Login by email magic link. Submitted text is not used to train AI models. ## Tools - [AI Humanizer](https://humanizego.com/): Humanize AI text for free. - [AI Detector](https://humanizego.com/ai-detector): Check if text is AI-generated, free. - [Pricing](https://humanizego.com/pricing): Plans and limits. ## Comparisons - [5 Best AI Detectors for Essays (2026)](https://humanizego.com/blog/best-ai-detectors-for-essays): Need an AI essay detector? We compare 5 AI detectors for essays in 2026 for teachers and students, plus how to use scores fairly and avoid false accusations. - [Best AI Humanizers in 2026: 10 Tools Compared](https://humanizego.com/blog/best-ai-humanizers): We compared 10 AI humanizer tools on free plans, word limits, pricing and features, so you can pick the right humanizer for school, work or content in 2026. - [7 Best ChatGPT Detectors (2026)](https://humanizego.com/blog/best-chatgpt-detectors): The best ChatGPT detector for you depends on text length, budget and risk. We compare 7 GPT detectors in 2026 by free limits, pricing, features and caveats. - [10 Best Free AI Detectors in 2026 (Compared)](https://humanizego.com/blog/best-free-ai-detectors): Looking for an AI detector free to use? We compare 10 free AI detectors in 2026 by word limits, sign-up rules, sentence highlights and paid upgrade prices. - [5 Best Free AI Humanizers (2026)](https://humanizego.com/blog/best-free-ai-humanizers): Want to humanize AI free? We compared 5 free AI humanizers on what the free tier really gives you: words per run, monthly limits and whether you must sign up. - [5 Best Copyleaks AI Detector Alternatives (2026)](https://humanizego.com/blog/copyleaks-alternatives): Is the Copyleaks AI detector right for you? We cover what Copyleaks AI does well, its limits, and 5 alternatives compared by free plans, pricing and features. - [7 Best Undetectable AI Alternatives (2026)](https://humanizego.com/blog/undetectable-ai-alternatives): Can any tool make AI undetectable? We compared 7 Undetectable AI alternatives, including BypassGPT and Phrasly, on free tiers, pricing and features. ## Guides - [Are AI Detectors Accurate? What AI Detection Research Shows](https://humanizego.com/blog/are-ai-detectors-accurate): Is AI detection reliable? We review the published evidence on AI detector accuracy, false positives and bias, from OpenAI and Turnitin to 2026 studies. - [Google AI Content Detector: Does Google Penalize AI Content?](https://humanizego.com/blog/does-google-penalize-ai-content): Is there a Google AI content detector? What Google's own guidance says about AI content, scaled content abuse and E-E-A-T, and what actually gets penalized. - [GPT-2 Output Detector and GLTR: The Hugging Face AI Detector](https://humanizego.com/blog/gpt-2-output-detector-and-gltr): The Hugging Face AI detector from OpenAI and GLTR explained: how the GPT-2 Output Detector worked, whether it's still online, and what to use instead. - [How Do AI Detectors Work? Inside an AI Detection Tool](https://humanizego.com/blog/how-do-ai-detectors-work): How does an AI detection tool decide if text is AI-written? Perplexity, burstiness, classifier models and watermarks explained, plus why tools disagree. - [How to Check if Text Is AI Generated: A 7-Step Checklist](https://humanizego.com/blog/how-to-check-if-text-is-ai-generated): Want to check if text is AI generated? Use this 7-step checklist: manual signs, two or more detectors, sentence highlights, version history and a fair talk. - [How to Humanize AI Text: A Step-by-Step Guide](https://humanizego.com/blog/how-to-humanize-ai-text): Learn how to humanize AI text step by step: manual edits with before-and-after examples, using a humanizer, then checking the result with a detector. - [What Is an AI Humanizer? Humanizing AI Text Explained](https://humanizego.com/blog/what-is-an-ai-humanizer): Humanizing AI text means rewriting stiff, robotic drafts so they read naturally. Learn how an AI humanizer works, what it can't do, and how to pick a good one. Every blog post has a Markdown version: add `.md` to its URL (for example https://humanizego.com/blog/how-to-humanize-ai-text.md). All posts in one file: https://humanizego.com/llms-full.txt ## Optional - [About](https://humanizego.com/about) - [Privacy Policy](https://humanizego.com/privacy) - [Terms of Service](https://humanizego.com/terms)