Competitors claim "99.7% undetectable" — then GPTZero's own blog shows they can detect the output. We took a different approach: train real models on verified human writing, publish actual test results, and improve in the open.
Every competitor treats you like you'll believe "99.7% undetectable!" We treat you like an adult who wants to see the real data before paying.
Phrasly says "proprietary models trained on 500k+ articles" but won't name a single model or show training data. We will: ft:gpt-4o-mini, trained on 833 Reddit posts and comments, each verified under 15% AI by GPTZero. That's not marketing — it's an architecture you can evaluate.
We show you every detector result. GPTZero: 99% Human. ZeroGPT: 100% Human. Originality: 100% Human on essays and articles with Deep Pass. Short emails are still a weak spot — we'll tell you that upfront. Check our Transparency Report below.
We went from 35% to 95%+ on Originality in one week by building a Deep Pass mode that runs text through our full pipeline twice. Essays, articles, blog posts, and technical writing pass consistently. Short emails and cover letters are harder — we're honest about that. When we improve, this page updates with real numbers.
Other tools run your text through a single GPT-4 rewrite and charge $12/month for it. We run five independent stages — each targeting a different signal detectors use to flag AI text.
Full rewrite at temperature 1.0. New structure, new word choices. All meaning preserved.
Our fine-tuned model — trained on 833 GPTZero-verified human texts. Rewrites in a genuinely human voice.
Rephrases 20-30% of sentences, varies rhythm, kills repetitive patterns.
300+ word swaps, contraction injection, compound sentence breaking. Raises unpredictability score.
Before/after AI detection scores so you can see exactly what changed.
This table is our promise. When we ship a new model, these numbers update. No hiding behind old benchmarks.
| Detector | Current Score | Target | Status |
|---|---|---|---|
| GPTZero | 99% Human | 99%+ | ✓ Passing |
| ZeroGPT | 100% Human | 95%+ | ✓ Passing |
| Originality.ai | 100% (Deep Pass) | 95%+ | ✓ Essays & articles |
| Turnitin | Testing | 90%+ | ⟳ Planned |
8 specialized modes — General, Academic, Legal, Medical, Technical, Creative, Marketing, Email. Each preserves domain-specific terminology. You pick the strength. We show you the score.
Sentence-by-sentence analysis. We flag exactly which lines sound AI and tell you why — parallel structure, formulaic transitions, low specificity. Not a black box score.
Generates content that's already more human than raw ChatGPT. Blog posts, essays, marketing copy. After final training rounds, this will run through the fine-tuned model automatically.
Paste your resume + a job description. Get back a tailored version with matched keywords, stronger bullets, and a match score. Straight talk about gaps too.
"Never use em dashes." "No emojis." "Always use contractions." Set them once, they apply every time. Your voice stays consistent even when AI writes the first draft.
Download as PDF, Word, Excel, or plain text. Detection reports include full sentence-level breakdown with flags, scores, and patterns. Real data, not a summary paragraph.
No free tier that gives you garbage results. No per-word charges. No feature gating. You subscribe, you get everything.