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#1 AI Detector & Humanizer

Humanize AI Text, Bypass Every Detector

Paste any text to instantly check if it reads as AI. Then humanize it in one click — free, no signup required.

Try a sample:

Free — no signup requiredResults in under 5 seconds500 free humanization words

How it works

Three steps to undetectable content.

1

Paste your text

Drop in any essay, blog post, email, or document you want checked.

2

Detect AI content

Get an AI probability score 0–100, with sentence-level color-coded highlighting.

3

Humanize it

One click rewrites your text to read naturally. Meaning and tone stay intact.

Features

Everything you need to beat AI detectors.

Detect, highlight, and rewrite — all in one tool.

87

Instant AI Detection

Confidence score 0–100 in seconds. Know exactly how likely your text is to be flagged.

Sentence-Level Highlighting

Every sentence color-coded by AI probability. See exactly what needs work.

One-Click Humanize

Rewrite flagged content instantly. Output reads naturally, passes major detectors.

Meaning Preservation

Facts, arguments, and tone stay intact. Only the AI fingerprint changes.

GPTClaudeGeminiLlamaMistral

Multi-Model Detection

Detects ChatGPT, Claude, Gemini, Llama, and more. Updates automatically.

$curl leap.ai/v1/detect
→200 OK · score: 87

API Access

RESTful endpoints for detection and humanization. Integrate into your workflow.

Pricing

Simple pricing. No surprises.

Detection is always free. Pay only for humanization. Save 50% with annual billing.

Free

$0forever

Try detection and humanization.

  • 500 lifetime words
  • Unlimited detection
  • Sentence highlighting
Get Started Free

Starter

$5/mo

billed annually

For individual writers.

  • ~20 essays / month
  • Unlimited detection
  • One-click humanize
  • Priority support
Start 7-Day Trial

Pro

Most Popular
$9.50/mo

billed annually

For professionals and teams.

  • ~40 essays / month
  • Everything in Starter
  • API access
  • Advanced humanization modes
Start 7-Day Trial

Power

$15.75/mo

billed annually

For heavy users and agencies.

  • ~70 essays / month
  • Everything in Pro
  • Highest priority queue
  • Early access to new detectors
Start 7-Day Trial

7-day free trial on all paid plans. Cancel anytime. No questions asked.

FAQ

Common questions.

Ready to make your content undetectable?

Start with 500 free words. No credit card, no commitment.