Instantly analyze any text to determine if it was written by AI or a human.
Run connected checks now; more detector APIs are pending
ZeroGPT
ZeroGPT
ZeroGPT
ProofWrite combines detection and humanization in a single workflow. Find the risky passages, send them to the humanizer, and verify the new version — all without switching tabs or copying text between tools.
Detection is most useful when it is connected to the rewrite workflow.
Understand the risk signals your text may create across common AI detection workflows.
See exactly which sentences appear AI-generated and which read as human-written.
Found risky passages? Send them into the humanizer and compare the revised version.
Use the detector result to decide the next edit instead of treating it as a dead-end score.
Detector disagreement is normal. Different tools weigh cadence, predictability, sentence length, and model fingerprints differently, so ProofWrite focuses on practical risk reduction instead of a single magic number.
One detector may punish predictable word choice while another focuses on sentence structure or perplexity.
Short snippets create weak signals. Longer passages usually give detectors more context and more confidence.
Different detectors use different thresholds, training data, and score calibration, so the same paragraph can receive different labels.
Different detectors weigh different signals. A text that passes one tool may fail another. ProofWrite cross-references multiple detection services so you see the full risk picture before submitting, publishing, or sending.
A useful AI detector should reduce uncertainty. These are the moments where ProofWrite helps most.
Check an assignment, cover letter, or application draft before it reaches a reviewer.
Review blog posts, product pages, and newsletters so the copy reads edited, not generated.
Check the final version in the same place you revise it, instead of copying it through several detector tabs.
Start free with 250 words. Upgrade for higher limits and advanced features.
Use ProofWrite to detect risky passages, humanize them, and compare the new version in the same workflow.