HumanizerAI
HumanizerAI rewrites AI-generated text from tools such as ChatGPT, Claude, and Gemini to sound more natural while preserving meaning.
What HumanizerAI is
HumanizerAI rewrites AI-generated text from tools such as ChatGPT, Claude, and Gemini to sound more natural while preserving meaning. Its Light, Medium, and Bypass modes provide different degrees of rewriting; the site notes that Bypass can substantially shorten and simplify text. Other listed writing tools include an AI detector, paraphraser, grammar checker, summarizer, word counter, plagiarism checker, and paragraph rewriter. The features page says quotations, citations, dialogue, mathematical formulas, and LaTeX notation are preserved. HumanizerAI cautions that detector results vary by text and detector and does not promise a particular outcome. It is available on the web, as an extension, and through an API; API keys require a Pro or Business plan. The free Chrome extension offers 50 daily scans for AI-generated posts on X and can hide AI content from the feed. Submitted text may be temporarily stored for processing and may be handled by third-party AI services.
Good
- Offers three rewriting modes and multiple writing tools.
- Free Chrome extension includes 50 scans per day.
- Supports 50 languages.
- API documentation includes AI detection and humanization endpoints.
- Subscriptions can be canceled anytime.
Watch out
- Starter includes 10,000 words/month.
- API keys require Pro or Business.
- Detector results are not guaranteed.
- Submitted text may be temporarily stored and processed by third parties.
Who it suits
HumanizerAI may suit students, writers, marketers, businesses, agencies, teams, and developers who want rewriting or related writing tools. Developers needing API access should note that API keys require Pro or Business.
Verdict
HumanizerAI combines text rewriting with detection and other writing utilities across web, extension, and API access. Its detector caveat and stated text-processing practices are worth considering before submitting sensitive writing.
Plans and prices
From HumanizerAI's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Starter | $10 a month | 10,000 words/month · AI Humanizer · AI Detector · Light, Medium & Bypass modes · document storage · API access · $120/year annually; $14.99 monthly |
| Pro | $21 a month | 50,000 words/month · AI Humanizer · AI Detector · Light, Medium & Bypass modes · document storage · API access · $252/year annually; $29.99 monthly |
| Business | $35 a month | 200,000 words/month · AI Humanizer · AI Detector · Light, Medium & Bypass modes · document storage · API access · $420/year annually; $49.99 monthly |
The facts
Each one read from HumanizerAI's own pages, with the date it was checked.
What it does
- Academic-use restriction
- The terms prohibit submitting processed content as original academic work and disclaim responsibility for academic consequences.checked 15 Oct 2026
- Agent integrations
- The developer materials provide agent skills and integration guidance for Codex, Claude Code, Cursor, Gemini CLI, Cline and other agents.checked 15 Oct 2026
- Agent support
- The site lists integrations or agent support for Codex, Claude Code, Grok Bot, Mistral Vibe, Cursor, OpenCode, Hermes Agent, Windsurf, GitHub Copilot, Gemini CLI, Cline, and Goose.checked 3 Oct 2026
- AI detector
- Its detector reports a 0–100 AI-like score with metrics including perplexity, burstiness and readability.checked 15 Oct 2026
- AI humanizer
- The main workflow accepts text from tools such as ChatGPT, Claude and Gemini and rewrites it while attempting to preserve meaning.checked 15 Oct 2026
- API
- The service exposes an authenticated REST API at https://humanizerai.com/api/v1 with detect, humanize and credits endpoints.checked 15 Oct 2026
- API access
- The API documentation says API keys require a Pro or Business plan; API requests can process up to 10,000 words, with plan-specific rate limits.checked 3 Oct 2026
- API license
- The published OpenAPI contract identifies the API license as proprietary.checked 15 Oct 2026
- API limits
- The API documentation sets a maximum of 10,000 words per request, with Pro limits of 60 requests per minute and Business limits of 300.checked 15 Oct 2026
- Chrome extension rating
- HumanizeAI has a rating of 4.6 out of 5 from 52 ratings in the Chrome Web Store.checked 15 Oct 2026
- Custom instructions
- The workflow supports re-humanizing with instructions such as making text more formal or retaining technical terms.checked 15 Oct 2026
- Detector caveat
- HumanizerAI says detector results vary by text type and detector and does not guarantee a detector outcome.checked 3 Oct 2026
- Documentation depth
- Public developer documentation includes quick start, authentication, endpoints, request and response examples, errors, rate limits, MCP setup and agent skills.checked 15 Oct 2026
- Grammar checker
- HumanizerAI offers a grammar-checking tool for reviewing writing errors.checked 15 Oct 2026
- Humanization modes
- Light, Medium and Bypass modes control how strongly the text is rewritten.checked 15 Oct 2026
- Integrations
- The API documentation describes REST API endpoints for AI detection, humanization, and checking credits, and provides an MCP server for Claude Desktop.checked 3 Oct 2026
- LaTeX and math
- The site says mathematical formulas and LaTeX notation are preserved exactly.checked 15 Oct 2026
- Limit: Trustpilot output complaints
- One Trustpilot reviewer says some humanizations left text unchanged or made it appear more AI-generated and that cancellation changed access immediately.checked 15 Oct 2026
- Limit: Trustpilot support complaints
- Trustpilot reviewers report unanswered support requests involving subscriptions, refunds and API-key access.checked 15 Oct 2026
Money
- Billing
- The pricing page says subscriptions can be canceled anytime, extra credits can be purchased, and annual billing saves 30% compared with monthly billing.checked 3 Oct 2026
Where it runs
- Browser extension
- The Chrome Web Store listing describes a free extension that detects AI-generated posts on X, offers 50 free scans per day, and can hide AI content from the feed.checked 3 Oct 2026
- GetApp feature claims
- GetApp describes file upload, multiple tones, 26-plus languages, Claude watermark removal and output in under eight seconds.checked 15 Oct 2026
The company
- Company size
- LinkedIn lists Humanizer AI as self-owned with 2–10 employees and one discoverable employee.checked 15 Oct 2026
- Headquarters
- Antibes, Francechecked 28 Sep 2026
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