Key points
- Originality.ai and Copyleaks are the two most commonly used agency-side screening tools.
- Some agencies set a hard threshold (e.g., under 20% AI-flagged) rather than a binary pass/fail.
- Freelancers increasingly run their own pre-submission check to avoid disputes.
Many content agencies now run every freelance submission through a detector like Originality.ai before approving payment, a practice that's become standard since 2024.
What this means for you
Originality.ai and Copyleaks are the two most commonly used agency-side screening tools. Understanding this distinction is the foundation for evaluating any specific tool's marketing claims — see our full humanizer comparison table for how individual tools stack up.
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