StealthBypass takes text a detector flagged and rewrites it until the detector stops flagging it. If you are looking for a replacement, the useful first question is not which vendor is cheaper. It is whether you want another rewriter at all, or whether you want the measurement instead. Those solve opposite problems.
Paste some text or load the example to estimate AI likelihood.
Verified on stealthbypass.app on 16 August 2026.
The homepage headline is "Rewrite AI Text That Still Sounds Like You", supported by "Beat every AI detector. Keep your voice" and a promise to "watch it flip from flagged to 100% human in seconds". Six detectors are named as targets: GPTZero, Turnitin, Originality.ai, Copyleaks, ZeroGPT and Sapling. The site also publishes head to head comparison pages against StealthWriter and Undetectable AI.
Technically this is a properly built product rather than a landing page with a form on it. It runs on Vercel with a Supabase backend, Stripe checkout, Mixpanel event tracking, geographic currency detection and at least one live A/B experiment (the server set an experiment cookie on our first request). None of that says the rewriting is good. It does say somebody is maintaining real software.
StealthBypass's pricing page is rendered in the browser from an API on its own domain. We called that API directly on 16 August 2026 and it returned prices in five currencies. The USD figures below are exactly what it served.
| Plan | Monthly | Annual | Words per run | Runs per month | Words per month |
|---|---|---|---|---|---|
| Free | $0 | $0 | 300 | 90, capped at 3 per day | 2,500 |
| Lite | $4.99 | $39.99 | 1,000 | 15 | 5,000 |
| Pro | $9.99 | $83.99 | 1,200 | 50 | 10,000 |
| Max | $19.99 | $179.99 | 2,000 | 120 | 20,000 |
The plan caps come from the site's own shipped configuration, which is what the running application enforces. The prices come from its live pricing endpoint. Both were captured in the same session.
Two one off credit packs also exist, defined in the same configuration with their own display names and copy:
| Pack | Price | Credits | Words per run | Expiry |
|---|---|---|---|---|
| Quick Pass | $1.99 | 5 | 800 | None |
| Deadline Pack | $12.99 | 20 | 1,200 | 60 days |
Prices in EUR, GBP, AUD and CAD are served by the same endpoint. Our request was resolved to India and returned USD as the currency, so the local pricing logic is live and does route by country.
The homepage advertises 3 free runs a day, 2,500 words a month, 300 words per run and no credit card required. That is accurate about the card. It is worth knowing that it is not anonymous: when we posted text to the rewriting endpoint without a session, it returned HTTP 401 with "Create a free account to humanize text". You will be signing up before you can evaluate anything.
Because that gate exists, we did not run a rewrite and make no claim about how well StealthBypass rewrites. Everything above is drawn from its published pages, its shipped configuration and its own pricing endpoint.
Three gaps are worth flagging, all observable and none of them accusations.
No named operating company. We read the terms of service, the privacy policy and the disclaimer, all dated 28 April 2026. They refer only to "StealthBypass". No legal entity, no country of incorporation, no registered address and no named individual appears. That is a real consideration if you plan to pay annually.
Support links that do not resolve. The footer advertises a Help Center, Contact Us, Status and Community. All four return 404, as do the cookie policy link and /about. Contact appears to be available only from inside a signed in account. A footer promising four support surfaces that do not exist is a fact you should weigh before committing to a $179.99 annual plan.
A third party host permitted in its security policy. The site's content security policy allows the page to make network requests to aiundetect.com and to api.openai.com alongside its own services. We searched the JavaScript actually delivered to the browser and did not find a call to aiundetect.com in it, so we can only report that the permission is declared, not that the request is made. aiundetect.com resolves and returns a page. We are recording the header contents and nothing more, and no conclusion about ownership or shared infrastructure should be read into it.
Against those gaps, one point in StealthBypass's favour deserves recording. Its privacy policy is unusually specific about data. It states plainly that original text, transformed text, model details, token counts, detector scores and session attribution may be stored; that raw text is purged after 30 days by default; that raw text retention can be switched off in account settings, after which only hashes and metadata are kept; and that account deletion removes transformations, usage logs, sessions and events. Most tools in this category are far vaguer than that.
If your objective is text that stops getting flagged, StealthBypass is built for that and TextSight is not. Do not move to us expecting it.
Stay put, or choose another rewriter, if:
TextSight is a detector. The box at the top of this page is the production one, the same engine paying customers use, and it will tell you what a detector sees rather than change it.
You get a score from 0 to 100 in three bands: under 30 is likely human written, 30 to 69 is mixed signals, 70 and above is likely AI generated. Minimum input is 25 words.
Anonymous use is 3 checks a day, pooled across the AI Detector and the Document Detector, with a 1,000 word cap. A free account, which costs nothing, gives 60 checks a day at 5,000 words and saves every scan to Scan History. That history is available to free accounts, not just paid ones. Starter allows 200 checks a day, and Pro and above are unlimited.
The engine is an English only ensemble of DeBERTa, RoBERTa and ELECTRA. It has a known false positive bias against writers who learned English as a second language. We publish that in the product because a detector score is often used against somebody, and the person on the receiving end deserves to know where the model is weakest.
Paid tiers add sentence level analysis and PDF export from Starter, plus file upload, URL scanning and bulk scanning, then a Chrome extension and REST API from Pro, and teams with branded reports from Business.
Prices are Starter $9.99 a month, Pro $19.99, Business $39.99, Enterprise $79.99. Annual billing is 25 percent cheaper: $7.49, $14.99, $29.99 and $59.99.
The deeper head-to-head: feature table, where GPTZero wins, where TextSight wins, and migration steps.
Read the comparePerplexity, burstiness, and transformer scoring explained, so you can read any detector's verdict critically.
Read the guideWhy detectors over-flag ESL and formal writing, and how sentence-level evidence helps you defend real work.
Read the guideThe full ranking with detection approach, pricing, and use-case fit side by side.
See the rankingStart with TextSight's free tier. No card, no signup, no commitment. Your first scan in about six seconds, with the evidence shown line by line.
Honest comparisons vs other tools.