CogniBypass is the oldest tool in this bracket and, unusually, one of the few that does not advertise a bypass percentage. It is also the quietest: its public changelog has not moved since March 2024. Whether that matters depends on what you use it for.
Paste some text or load the example to estimate AI likelihood.
Checked against cognibypass.com on 16 August 2026.
The site is fully built and working. Signup and signin both load, as do the tool at /bypass, a separate /texteditor, an affiliate page at /earn, an about page, pricing, terms, privacy and a changelog. Every internal link in the footer resolves.
The tool interface is more configured than most rivals. It offers two model names, Cosmic and Supernova, six tone settings (Professional, Casual, Academic, Creative, Formal, Conversational) and seven content types (Essay, Article, Blog Post, Research Paper, Thesis, Report, Story). Processing sits behind an account.
Published plans: Amethyst is free with 5 credits and 250 words processed at once. Sapphire is $20 a month or $60 a year, with 250 credits, 500 words at once and 1 Turnitin Report. Emerald is $30 a month or $90 a year, with unlimited credits, 1,500 words at once and 3 Turnitin Reports. Ruby is $100 a month with unlimited credits, unlimited words at once and unlimited Turnitin Reports. A 75 percent annual discount promotion was running at the time of checking. All tiers list "Pro Algorithm" and "Priority support".
Contact is a mailto: link to contact@cognibypass.com. The public WHOIS record gives a domain creation date of 10 May 2023, making this the longest running service of the small humanizers we examined, and the registration was last updated in April 2026.
There is a real public presence: linked Instagram, X, YouTube and TikTok accounts, plus two Discord invites, both of which resolved when tested.
This deserves calling out, because it runs against the grain of the category.
CogniBypass publishes no bypass rate. No "99.8%", no "97%", no bar chart with rivals pegged at made up numbers. Its market comparison section instead carries this line: "Comparison reflects CogniBypass's own assessment. AI-detection results vary by detector version, update cadence, and content type."
That is an accurate statement about how this technology behaves, and it is the only such disclaimer we found across the five tools in this review. The only percentage anywhere on its homepage is the 75 percent discount. Whatever else is true here, the marketing is not making promises it cannot keep, and a buyer should weigh that.
The changelog contains three entries and stops. In order: "A New Chapter for CogniBypass (v1.0.0)" on 24 January 2024, "Return of Meteor (v1.1.0)" on 1 February 2024, and "Nebula Model & Multi-Language (v2.0.0)" on 27 March 2024. Nothing since, a gap of roughly twenty nine months at the time of writing.
The terms of service carry "Last updated January 23, 2024", while the footer copyright renders as "© CogniBypass.com 2026", which is the pattern of an auto generated year rather than a reviewed document. The footer's blog link points to blog.cognibypass.com, which returns 404.
The site also links out to two other products, humaniser.com carrying a utm_source=cognibypass parameter, and ryne.ai. We are not going to speculate about the relationship; we note only that the links exist.
None of this proves the service is unattended. Billing may run fine and the models behind Cosmic, Supernova and Nebula may have been updated without a changelog entry. But in a category where the underlying detectors change every few months, a public record that stopped in early 2024 is information you should have before you commit to an annual plan. Prefer monthly here until you have tested it yourself.
There are real reasons people stay, and some of them do not have equivalents elsewhere.
The Turnitin Report allocation is the strongest one. Sapphire, Emerald and Ruby bundle 1, 3 and unlimited reports respectively. For students, that is often the actual thing being bought, and most competitors in this price range do not offer it at all. If that is why you are here, very little else in the category replaces it.
The tone and content type controls are more granular than the single mode sliders most rivals ship, and the distinction between a Research Paper and a Blog Post is a real one for a rewriter to make.
The free tier lets you try the product properly before paying, at 5 credits and 250 words per run. Small, but it is a working sample rather than an email capture.
Ruby's unlimited words per run is genuinely rare. Most tools in this bracket cap a single input at 1,200 to 5,000 words, so if you process long documents whole rather than in sections, the ceiling matters more than the monthly total.
And the restraint in its marketing is worth something. A vendor that tells you results vary by detector version is more trustworthy on the things it does claim than one advertising 99.8 percent with no method attached.
The plausible swaps are the other tools this size: SuperHumanizer, WriteHumane and TextHumanizer. Compare them on per input word ceilings, whether a Turnitin report is included, whether anyone is named as the operator, and when the site last visibly changed. On effectiveness you will be comparing unverifiable numbers against each other, except with CogniBypass, which declines to publish one.
Plainly: we build the detector. Our rewriting works toward clearer prose, not toward defeating a checker, and we publish no pass rates because that is not what we sell. Someone leaving a bypass tool usually wants another bypass tool, and if that is you, one of the names above will serve you better than we will.
The people we fit are on the other side of the same problem. You need to know how a draft reads before an editor, client, platform or institution runs its own check. You are reviewing writing you commissioned. You want a score with sentence level reasoning rather than a rewrite you then have to trust blindly.
How it works. The detector is an English only ensemble built on DeBERTa, RoBERTa and ELECTRA. Scores fall into three bands: under 30 is "likely human-written", 30 to 69 is "mixed signals", 70 and above is "likely AI-generated". The box above works with no account at three checks a day, pooled across the AI Detector and Document Detector, up to 1,000 words per check with a 25 word minimum. Registering free lifts that to 60 checks a day at 5,000 words with history.
A limitation we state rather than bury: the ensemble has a known false positive bias against writers who learned English as a second language. Real human writing by ESL authors scores higher than it should. Treat the number as evidence, not a verdict, and especially so in that case.
Paid tiers, annual billing 25 percent below monthly: Starter $9.99 or $7.49 annual, Pro $19.99 or $14.99, Business $39.99 or $29.99, Enterprise $79.99 or $59.99. Sentence level analysis and PDF export from Starter. Chrome extension and REST API from Pro. Teams and branded reports from Business. File upload, URL scan and bulk scan throughout.
If the Turnitin reports are the reason you subscribe, stay, and buy monthly given the changelog gap. If you have stopped needing evasion and now need to know how your writing actually reads, use the box at the top of this page.
contact@cognibypass.com.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.