AI Humanizer FAQ

The humanizer engine employs a hybrid between advanced NLP algorithms and a fine-tuned LLM trained on an extensive dataset of human-written, peer-reviewed research papers in various disciplines. The NLP layer extracts in-text linguistic signals (perplexity, burstiness, sentence structure, lexical diversity, formality register, n-gram frequency, token distribution, etc.) to identify which patterns read as machine-written. The LLM layer rephrases those passages using the signal profile as a guide, rebuilding the cadence a human writer would produce while preserving your intended meaning, technical terms, citations, and academic tone. Finally a series of post-processing steps validate grammar, citation integrity, acronyms and terminology before the output is returned.

TextPulse works in two layers, and analyzes an array of multiple in-text signals, including perplexity (word-level surprise), burstiness (sentence length variation), lexical diversity (vocabulary richness), sentence structure (syntax depth), token distribution, transition patterns, formality register, readability scores (Flesch-Kincaid, Gunning-Fog), n-gram frequency, passive voice ratio, clause embedding depth, hedging language, discourse markers, collocations, nominalization, pronoun distribution, adverbial placement, punctuation patterns, paragraph flow, citation density, and semantic coherence.

The slider has five stops: Mild, Moderate, Balanced (recommended), Strong, and Aggressive. Mild makes subtle adjustments and keeps most of your wording. Balanced restructures the patterns that read as machine-written and adds natural lexical variation, which suits most academic writing. Aggressive rewrites at passage level, splitting and merging sentences for the deepest change. The AI score reduction increases as you move on the scale from Mild to Aggressive. The slider itself is a Plus feature; Pro runs every humanization at Balanced.

Start with Balanced. It is the recommended setting for most academic writing and gives the best trade-off between natural phrasing and staying close to your original. If the text only needs light touching up, use Mild or Moderate. If a Balanced pass leaves too much machine cadence behind, move up to Strong or Aggressive and run it again.

No. TextPulse automatically detects in-text citations in APA, IEEE, MLA, Chicago, Vancouver, and other major formats before humanization begins. Citations are locked and preserved completely untouched.

TextPulse supports all major citation formats: APA (Author, Year), IEEE [1], MLA (Author Page), Chicago (Author Year, Page), Vancouver (numbered), Harvard, Turabian, and others. Both parenthetical and narrative citations are detected and preserved.

Freeze terms are words or phrases you want TextPulse to never modify during humanization. This is essential for discipline-specific terminology: technical jargon, chemical names, methodologies, proprietary terms, abbreviations, and multi-word technical phrases. When you define freeze terms, the engine locks them in place and works around them. It also injects additional discipline-relevant vocabulary into rephrased passages to enhance naturalness.

Freeze terms are a Plus feature. Plus users can lock up to 10 discipline-specific keywords or phrases per humanization, and TextPulse will never rewrite them.

It was trained on human writing. And human writing is never grammatically perfect. It comes with subtle imperfections and varying styles. This is true even for peer-reviewed academic research papers. With this being said, benchmark tests show that the humanizer maintains a ~94% grammar accuracy. So you get a grammatically acceptable draft, with subtle imperfections, as if a postgrad wrote it. Note that if you want to clear up any residual grammatical imperfections, we made this easy too. The Grammar Checker tool was designed for this exact purpose. In the dashboard, go to 'Actions' above the Output Panel, then press 'Grammar check'. This takes you to the Grammar Checker tool, where you can apply a Light Proofreading run on the humanized text, without re-spiking the AI score.

Plus includes three companion tools in the dashboard for polishing humanized text. The Grammar Checker was engineered to perform a light, detector-safe proofread: it fixes clear spelling, grammar, and punctuation errors without re-spiking the AI score, so your AI score stays low (heavy rewriting is what pushes detector scores back up). The Em Dash Remover replaces AI-typical em dashes with natural punctuation. The AI Word Cleaner swaps vocabulary that AI models statistically overuse, words like delve, pivotal, underscores, and tapestry, for the formal wording human researchers actually write. The grammar checker and word cleaner use your word credits, but the Em Dash Remover is free to use. Like the humanizer, each of these three tools handles up to 1,000 words per run.

The Grammar Checker was designed to do a light proofread and adjust critical grammar errors without re-introducing the AI fingerprint. This is in contrast to other grammar checkers like Grammarly and QuillBot, which increase the AI score. It runs a single light proofread pass that fixes only clear, unambiguous errors: missing commas, subject-verb agreement, articles, possessives, run-on sentences, sentence fragments, doubled words, misspellings, and broken punctuation. It never rephrases, reorders, or smooths sentences at the syntactic level, because rewriting is exactly what pushes detector scores back up. Best used on your humanized text. You review the result as plain text or a word-level diff, then copy it or export it as text or Word, including a Word version with tracked changes.

The humanizer option cleans em dashes as part of a humanization pass; the Em Dash Remover is a standalone tool for any text you paste in. It highlights every em dash as you type and counts them live, then replaces each one with your choice of punctuation: Smart mode picks a comma, colon, period, or clean removal from the sentence context, or you can force commas, semicolons, or colons everywhere. It also catches spaced en dashes and typed double hyphens if you switch those on, while number ranges are never touched. It is free to use and does not consume your word credits.

It targets the vocabulary AI models statistically overuse: inflated verbs like delve and harness, superlative adjectives like pivotal and groundbreaking, ornamental nouns like landscape and tapestry, stacked transitions, throat-clearing filler such as it is important to note that, signature AI phrases like a testament to, and corporate jargon. A research-sourced lexicon flags candidate AI terms, then a context-aware model pass checks each one in its sentence and swaps the real offenders for the plain wording human researchers actually use. Words used in a legitimate domain sense stay, so a finance paper's 'leverage' or a geography paper's 'landscape' is never touched, and citations, numbers, and technical terms come through untouched. Export the result with tracked changes to review every swap.

Writing modes tune the rewrite to the kind of document you are working on: General, Academic, Corporate, Creative, and Blog/SEO. Academic is the default and is available on every paid plan; the other four are Plus features. In Blog/SEO mode the freeze-terms field becomes SEO keywords, so the SEO keywords and phrases you need to rank for are never rewritten.

Voice is a filter you set in the dashboard before a humanization. 'Match my draft' preserves whatever voice your text already uses. 'Formal academic' preserves the output in the neutral, objective tone of published research and prohibits first or second person. 'First person' only preserves the 'I' and 'we' of your draft and blocks any second person. 'Second person' only preserves your 'you' and blocks any first person. Write the draft in the voice you need, pick the matching option, and the humanizer engine always preserves your preferred voice. Write in the voice your submission requires, and then select that voice from the Voice dropdown menu. Every sentence of the humanized text is then preserved in that voice. This has been a well known flaw inherent in all humanizer engines, but we fixed that for you. Thank us later.

AI drafts overuse em dashes, and both detectors and human reviewers notice. The Remove em dashes control (ON by default) strips AI-typical em dashes from the output and replaces them with commas, so the punctuation reads the way an academic writer would actually punctuate.

Yes. Every paid plan includes the tracked-changes view: a word-level diff that shows precisely what was rewritten, so nothing slips through unreviewed. The Plus plan adds tracked-changes export, letting you open the diff in Microsoft Word or save it as a PDF for further editing.

Every pass reports four tiles plus a Human Score: Rewrite (how much of the text changed), Readability (Flesch-Kincaid grade level), Perplexity (an estimate of word-level surprise, where higher reads as more human), and Burstiness (sentence-length variation, drawn as a sparkline that changes colour as variation rises). Edit Metrics in the user menu lets you choose which tiles stay visible.

Perplexity measures how predictable word choices are: AI-generated text has low perplexity because it always picks the most statistically likely next word. In contrast, human writing has higher perplexity because people use unexpected word choices. Burstiness measures variation in sentence length: AI tends to produce flat, uniform-length sentences, while humans naturally mix short and long sentences. TextPulse increases both metrics to match human writing patterns.

Yes. You can re-run a humanization with a different intensity or different settings. The Plus plan adds the Re-humanize feature, which feeds the output straight back into the engine for a second round of iterative re-humanization. Each humanization refines the text further, which helps when the first result is not natural enough. Every humanization spends words from your allowance.

The engine gauges how machine-written the input reads and rewrites in proportion. AI-generated text gets restructured heavily. If you paste human-written or heavily human-edited text, its structure and wording already resemble human writing. The humanizer is familiar with the shape of human text, so naturally, it changes less. A low Rewrite score on that kind of input is expected behavior.

Every pass is saved to your History page, where you can reopen past runs, review the input and output side by side, and send any run back to the workspace with one click using Rewind. Pro keeps your last 3 humanizations, Plus keeps your last 20, and older runs drop off automatically.

No. TextPulse rephrases how your ideas are expressed while preserving what they say. The engine preserves the semantic content, argumentative structure, and logical flow of your original text. Technical claims, data references, and conclusions all remain intact.

TextPulse processes plain text, and it is built for technical writing: inline mathematical notation, LaTeX spans, chemical formulas, and sub- or superscript characters are detected automatically, locked, and preserved verbatim. Tables, figures, and images cannot be pasted into the editor, so humanize the surrounding prose section by section, but avoid inputting anything that is not body text.

Paste body-text paragraphs only. The engine is tuned for body text, so leave out headers, titles, figure and table captions, and reference lists, then re-insert the humanized text into your structured document afterward.

Yes. You can upload .docx and .txt files straight into the input panel. Output can be copied or exported as text, Word, HTML, or Markdown, and the Plus plan also adds tracked-changes and PDF export.

The model was trained to detect the writing styles and patterns of all popular AI model families, including ChatGPT, Claude, Gemini, Perplexity, Meta Llama, DeepSeek, Qwen, Mistral, Grok, as well as other smaller models. It tends to do its best humanizations on Gemini, Claude, and DeepSeek output, which achieves the largest AI score reduction. ChatGPT comes towards the end, with slightly less AI score reduction.

No. TextPulse generates original rephrased text; it doesn't copy from any source. The output is unique to your input and won't match existing content in plagiarism databases. Your original citations and references remain intact, so proper attribution is preserved.

The AI detectors most universities and academic institutions use are Turnitin AI, Pangram, GPTZero, Originality.ai and Copyleaks.

No. TextPulse does not run detector scans and does not sell detector credits. What the app shows after each humanization is a Human Score: an estimate, computed from your own text, of how likely detectors are to read it as human-written. It is a guide only; no detector produced it. If your institution asks for a specific detector report, run the text through that tool directly.

The Human Score combines rewrite depth, vocabulary diversity, token distribution, and sentence-length variation into a single estimate, from 0 to 100, of how human-written the output reads. It is calculated from your text inside the app, so it never calls a detector. Treat it as a signal that a humanization did its job; no one else will see it as a score.

No tool can guarantee a consistently low score across all AI detectors. Third-party detectors produce probabilistic assessments that change as their algorithms are updated. TextPulse does not guarantee a specific score from any third-party detector, or that a particular output will achieve a particular result. Results vary with the input text, the AI model that generated it, the settings used, and the detector doing the scoring. Turnitin is the gold standard AI detector used by most universities, and is considered the most reliable benchmark of whether text truly reads as human, so Turnitin is the detector we benchmark against. In a recent test, one round of humanization reduced the Turnitin AI score by up to 70%, and a second round on only the remaining AI-flagged sentences reduced the final Turnitin AI score to below 20%.

Four practical steps: (1) Run the humanization again. The engine is stochastic, so it produces a different output each time, and a rerun often scores lower on the same input. Generate at least two versions and keep the better one. (2) Raise the humanization intensity, which forces a deeper rewrite. (3) Use Re-humanize to send the output through the engine for a second round. (4) If you draft with an AI model, use a flagship model such as Claude or Gemini. The engine reaches its lowest detection scores on their output, and their formal writing is cleaner than ChatGPT's to begin with.

AI-generated text has a recognizable style that readers often spot without any tool. Generic, robotic phrasing, uniform sentence lengths, and the same overused vocabulary. Human writing is direct and active, with natural variation in rhythm and word choice. The humanizer's job is to change your text from the first style to the second, because that is what professors, reviewers, and readers prefer to read. University-grade detectors like Turnitin are the most reliable benchmark of whether your text truly reads as human. And achieving a low AI score confirms this.

Yes. The Free plan is a free humanization demo: you get the full humanizer workspace with a real before and after example, citation preservation, and the tracked-changes view, so you can see exactly what the engine does to academic writing. Humanizing your own text needs Pro or Plus. No credit card required to start.

TextPulse offers three plans: Free (humanization demo, $0), Pro (25,000 words/month, $19/month or $169/year), and Plus (50,000 words/month, $29/month or $259/year). Pro and Plus subscribers can also add one-time credit packs on top of their monthly allowance.

Pro gives you 25,000 words/month (500 per humanization), the Academic writing mode at Balanced intensity, citation preservation, the tracked-changes view, and your last 3 humanizations saved. Plus gives you 50,000 words/month (1,000 per humanization), all five writing modes, the five-stop intensity slider, the multilingual humanizer (60+ languages), freeze terms and SEO keywords, US/UK English control, tracked-changes export, Re-humanize, and your last 20 humanizations.

Annual billing saves about 26% against monthly. Pro drops from $19/month to $169/year, which works out to $14/month. Plus drops from $29/month to $259/year, or $22/month.

Credit packs are word bundles for Pro and Plus subscribers: buy once, use anytime, and credits never expire. Options: Starter Pack (10,000 words, $9), Research Pack (25,000 words, $19), and Thesis Pack (45,000 words, $29). Pack words stack on top of your monthly allowance and are consumed after it runs out.

Monthly subscription words do not roll over; they reset on your billing date. However, one-time credit pack words never expire and can be used anytime. If your usage spikes some months, adding a credit pack to your plan is a cost-effective way to cover them without moving up a tier.

When you exhaust your monthly word allocation, you can: (1) wait for your allocation to reset on your billing date, (2) upgrade to a higher plan for immediate additional words, or (3) purchase a one-time credit pack for extra words without changing your plan.

Upgrading takes effect immediately; you're charged only the prorated difference for the remainder of your billing cycle. For any other plan change, email us and we will sort it out for you.

Yes. Cancel from your account's Billing page whenever you want. There are no cancellation fees, no lock-in contracts, and no exit interviews. Your plan stays active until the end of your current billing period.

Subscriptions and credit packs are non-refundable, as set out in our Terms. The one exception: we may, at our discretion, refund a payment if you request it within 24 hours and fewer than 1,000 words have been processed on your account since that payment. AI detector scores are not grounds for a refund; see the detector question in the AI Humanizer section. You can cancel any time from your account's Billing page and you keep access until the end of the period you have already paid for.

Payments are processed by Stripe, which accepts major credit and debit cards, Apple Pay, Google Pay, and Link. Card details are entered on Stripe's own checkout and never reach our servers. Your statement shows TEXTPULSE.AI.

We keep our pricing accessible for students. The Pro plan at $169/year, or $14/month, gives you 25,000 words per month and is built with student budgets in mind. For institutional or group pricing (university departments, research groups), contact us for a custom quote.

No. Credit packs are add-ons for active Pro and Plus subscriptions. Upgrade to a paid plan first; after that, pack words stack on top of your monthly allowance and never expire.

Your word balance is always visible in the top bar of the app, and the Billing page breaks it down into your monthly allowance and any credit pack words. The balance updates in real time as you humanize text.

Text is processed as you submit it. On paid plans your runs are saved to your own history so you can reopen them later (the last 3 on Pro, the last 20 on Plus), and older runs drop off automatically. Nothing is kept beyond that history, and deleting your account permanently closes access to it.

No. Text is processed through automated systems only. TextPulse staff do not read the content you submit for humanization, and we treat all user content as confidential.

Yes. All data in transit is encrypted using TLS (HTTPS), and data at rest is encrypted by our hosting providers. Sessions live in secure HTTP-only cookies that cannot be read by scripts in the page.

You can sign in with your email and password or with Google. Passwords are never stored in plain text, only as strong one-way cryptographic hashes, and sessions live in secure HTTP-only cookies that cannot be read by scripts in the page.

Deleting your account closes it immediately: you are signed out, sign-in is blocked, and your humanization history is no longer accessible. If you have an active subscription, cancel it first from the billing portal, which the delete step links you to. To have your remaining records erased entirely, email us and we will complete the removal.

Yes. TextPulse respects GDPR principles: we collect only the minimum data needed to run the service, you can delete your account at any time, we never use your content to train AI models, and our privacy policy explains every data practice. Email us for a copy of the data we hold on you and we will provide it.

No. Text submitted to TextPulse is never used to train, fine-tune, or improve AI models. Your academic work stays yours. We process it to produce your humanized output, nothing more.

TextPulse runs on a global edge network that serves the site from data centers worldwide for fast performance, and our database layer encrypts data at rest. We keep our specific infrastructure providers private as a security measure; details are available on request, as set out in our Privacy Policy.

If you discover a security vulnerability, please report it responsibly by contacting us at [email protected] with 'Security' in the subject line. We take every report seriously and respond as quickly as possible. Please do not publicly disclose a vulnerability before we have had a chance to address it.