StealthGPT

StealthGPT is a paid service with a free plan and free trial for rewriting AI-generated text, detecting AI-written text, and creating content. Stealth Writer generates essays and other text with in-text citations and bibliography formatting. Stealth Agent combines web research, drafting, relevant fact-checking, and humanization in one workflow. The AI detector estimates how major detectors such as Turnitin analyze text, and a no-signup detector is listed on the home page. Plans support 100+ languages. Integrations include Claude, Cursor, n8n, WordPress, and Zapier, with MCP access for compatible tools. Its REST API provides Writer and Humanizer, Stealth Agent, and usage-and-balance endpoints. The FAQ says content is not shared with detectors or third parties and generations remain in the user's account; the privacy policy says internet transmission and storage cannot be guaranteed secure. Super costs $0.05, paid once, billed at $0.05 per 100 words. Developer costs $0.20, paid once, billed at $0.20 per 1K words, with credits that never expire. Enterprise is $179.99 a month.

StealthGPT combines content generation, rewriting, detection, and API access with free and paid entry points. Buyers should review request limits, plan-dependent access, and the stated security qualifications.

StealthGPT is presented for students, writers, businesses, and developers needing writing, humanization, detection, or API workflows. Its academic, SEO, and social content uses may suit varied writing tasks.

StealthGPT is an AI writing suite that humanizes generated text, drafts and researches content, checks for AI signals, and exposes the same capabilities through an API. It fits students, multilingual writers, content teams, businesses, and developers who need both app-based and programmable workflows. Its strongest case is breadth, while request caps and the split between subscriptions and usage billing deserve close attention.

Overview

The Humanizer rewrites AI-generated copy, and Stealth Writer adds essay and document drafting with in-text citations and bibliography formatting. That combination is useful for preparing an academic draft, but citations and claims still require the writer’s own verification.

Stealth Agent is the more ambitious workflow: it researches the web, drafts, fact-checks where relevant, and humanizes the result in one process. It is better suited to producing a complete first draft than to making a quick wording change. The AI detector estimates how major detectors such as Turnitin analyze text, while a no-signup detector is offered from the home page. Treat that output as an estimate rather than a final academic or editorial ruling.

StealthGPT says generations remain in the user’s account and are not shared with detectors or third parties. Its privacy policy also says organizational and technical safeguards cannot guarantee the security of internet transmission or storage, so sensitive material still warrants caution.

Key features

Support for more than 100 languages makes the service practical for multilingual publishing and international teams. Integrations with Claude, Cursor, n8n, WordPress, and Zapier, plus MCP access for compatible tools, give developers several ways to place writing and rewriting inside existing workflows.

The REST API exposes Writer and Humanizer, Stealth Agent, and usage-and-balance endpoints. That is a meaningful advantage for products that need automated generation or rewriting instead of manual copy-and-paste. Support is available through searchable guides, a support assistant, tickets, and request tracking.

Plan allowances have two separate dimensions: total output and the maximum words in one request. The published request caps are 1,000, 2,000, and 10,000-plus words respectively, so a high monthly allowance does not automatically permit a long single generation.

Pricing

StealthGPT has a free plan and free trial, with paid entry from $6.99. The low-cost entry is useful for sampling the tools, but the service’s limits and plan-dependent access matter more than the headline starting price.

Super suits occasional users who prefer no recurring charge and can budget by word. Developer is the more practical fit for software teams because unused word credits do not expire and the endpoint set is explicit. Enterprise is aimed at organizations with substantial monthly volume and collaboration needs; five seats and 10,000-plus-word requests are materially different from the tighter lower-tier caps. Enterprise API is for buyers who need negotiated volume, service commitments, and onboarding rather than a self-serve price.

The iOS app and Chrome Extension are included on Pro, Max, and Enterprise plans, so mobile and browser access is not uniform across every paid option. The API also offers free starter usage, while Developer remains usage-based at $0.20 per 1K words.

Platforms

StealthGPT runs on the web and is offered through an iOS app, Chrome Extension, and API. That spread supports individual drafting, browser-based rewriting, mobile use, and integration into software systems. The iOS app and extension are specifically included with Pro, Max, and Enterprise access.

Who it's for

Students can use Stealth Writer for structured drafts and citation formatting, with personal checking still essential. Writers and SEO or social-content teams benefit from the Humanizer, multilingual support, and Stealth Agent’s research-to-draft workflow. Businesses with automation requirements can connect the API, integrations, and MCP to existing tools. Developers who need durable, metered credits have a clear reason to choose Developer.

It is a weaker fit for buyers who need a simple, tightly capped paraphraser, a fully guaranteed security posture, or predictable subscription pricing without separate request and output allowances.

Pros and cons

Pros

• Broad workflow coverage: Humanizer, writing tools, detector, and Stealth Agent span rewriting through research-led drafting.
• Developer-ready access: REST endpoints, integrations, MCP, and non-expiring Developer credits support automation.
• Multilingual reach: More than 100 languages suit international teams and varied publishing needs.
• Flexible billing: Super and Developer allow pay-as-you-go use instead of forcing every buyer into a subscription.

Cons

• Layered limits: Total output and per-request caps are separate, which can complicate capacity planning.
• Uneven device access: iOS and Chrome Extension access is tied to Pro, Max, and Enterprise plans.
• Security qualification: The privacy policy does not promise that internet transmission or storage is risk-free.
• Detector uncertainty: Its estimates indicate how services may assess text, not an authoritative result.

Alternatives

For a broader comparison of this category, see AI Text Humanizers.

• StealthWriter is a freemium Android, iOS, and web option with a free allowance of 10 humanizations and 10 AI scans per day.
• WriteHuman is a freemium service spanning Android, API, extension, iOS, and web.
• Rephrasy is a paid service with a free plan and trial, including a $8.25-per-month Growth plan billed yearly.
• Walter Writes AI is a paid service with no free plan and a free trial.
• Humanize AI is freemium and focuses on API and web access, with 1,500 free words per month.
• 254labs Ghost Mode Humanizer is a web-only freemium alternative.
• Bypass Engine is a freemium web service with a free starter allowance and 85 languages.
• HumanizeAI.io is a freemium web option with a free tier and trial.

Verdict

Choose StealthGPT if you want one product that covers humanizing, academic-style drafting, research, detection, multilingual output, and API automation. Its main reason to look elsewhere is complexity: separate usage products, request caps, and plan-gated app access demand more careful matching than a basic humanizer. Buyers who can align those limits with their workload get a notably broad toolkit; buyers who cannot should choose a simpler, more predictable alternative.