Sapling AI Detector

Free probability score that text is AI-generated, with sentence-level highlighting

What Sapling AI Detector does

  • Free probability score that text is AI-generated, with sentence-level highlighting
  • No account needed; up to 2,000 characters per check
  • Also PDF/Word detector and an API

Sapling AI Detector — straight answers

What is Sapling AI Detector?

Sapling AI Detector is listed under AI Content Detection & Humanizers, in the Content & Media Generation category on Flocci AI Tools. Free probability score that text is AI-generated, with sentence-level highlighting. It is free, with no paid plan attached, and it lives at sapling.ai.

Is Sapling AI Detector free?

Sapling AI Detector is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 397 entries on Flocci AI Tools with no upgrade path built in.

Can I use Sapling AI Detector in a browser, or is there an app?

Sapling AI Detector works in a normal browser tab with no install. It is available on the web, a Chrome extension and an API.

What can Sapling AI Detector do?

Sapling AI Detector does 3 things the catalog singles out: Free probability score that text is ai-generated, with sentence-level highlighting; no account needed; up to 2,000 characters per check; also pdf/word detector and an api.

What is the best free alternative to Sapling AI Detector?

Copyleaks AI Detector is the closest free alternative: it sits in the same AI Content Detection & Humanizers sub-category and is free tier + paid plans. GPTZero and Pangram AI Detector also start free. The full list is on the alternatives page.

See the full list →

Sapling AI Detector alternatives

Compare all alternatives →

GPTZero

AI Content Detection & Humanizers
freemium
  • Free tier plus dedicated Chrome extension and AI Vision (image/document) detection
  • Hallucination detector distinct from pure AI-text detection
  • Used by 10M+ teachers/students per vendor, education-market leader

Originality.ai

AI Content Detection & Humanizers
trial
  • Combined AI detection + plagiarism + fact-checking in one scan
  • Website-wide scanning for publishers/agencies, not just single documents
  • Detects output from ChatGPT, GPT-4, Claude, and other major model families

Winston AI

AI Content Detection & Humanizers
trial
  • Image and deepfake detection alongside text AI-detection
  • OCR scanning lets it detect AI text inside scanned documents/PDFs
  • HUMN-1+ website certification badge for publishers on higher tiers

Undetectable AI

AI Content Detection & Humanizers
trial
  • Bundles an AI humanizer with unlimited AI-detection scanning on every paid plan
  • Claims to match target "writing level" when rewriting AI text
  • White-label and non-expiring credit options for agencies

Copyleaks AI Detector

AI Content Detection & Humanizers
freemium
  • Detects AI-generated text and flags likely AI passages sentence by sentence
  • Free scans up to 25,000 characters without logging in, with a daily scan cap
  • Covers many languages; Chrome extension available

Pangram AI Detector

AI Content Detection & Humanizers
freemium
  • Detects AI-generated and AI-assisted text from ChatGPT, Claude, Gemini, Grok, Llama and DeepSeek
  • Free plan with about twenty checks a day after sign-up
  • 20+ languages; lower false-positive claims than older detectors

Head-to-head comparisons