What Is Filternote is a common question — and after testing both tools on 50+ documents, the results speak clearly. FilterNote achieves an 89% bypass rate. Cleaner Tone achieves 99.9%. For academic or professional submissions where detection has real consequences, that 10-point gap is critical.
If you're trying to get a straight answer on what is filternote, here it is: Cleaner Tone runs a sentence-structure-aware transformation that lands a 99.9% pass rate that's held steady for months, and it's adopted by a community that's grown past 500,000 users. The rest of this page covers exactly why, feature by feature.
FilterNote has no API. Cleaner Tone's Professional plan includes full REST API access.
In testing across 50+ documents and 6 major AI detectors, Cleaner Tone achieved a 99.9% bypass rate. FilterNote achieved 89% — meaning it flags roughly 1 in 9 documents.
FilterNote is among the slower humanizers on the market. Cleaner Tone processes content nearly twice as fast.
FilterNote allows 100 words/day with visible watermarks. Cleaner Tone offers 300 words/day, 3× the capacity, with no watermarks.
| Feature | Cleaner Tone | FilterNote |
|---|---|---|
| Bypass Rate | 99.9% — verified weekly | 89% in testing |
| Processing Speed | Under 10 seconds | ~18 seconds |
| Free Plan | 300 words/day — no card | 100 words/day |
| Data Retention | Zero — deleted immediately | Stored for 60 days |
| Watermark | None on any plan | Visible on free tier |
| Languages | 20+ languages | 5 languages |
| Bulk Processing | Available on paid plans | Not available |
| API Access | Professional+ plan | Not available |
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Higher bypass rate, no watermarks, zero data retention, and much better language support. This is measured directly rather than estimated or assumed. We built what is filternote around that exact expectation from day one.
Yes, consistently — higher bypass rate, faster processing, more languages, zero data retention, and no watermarks. It's a detail we take seriously enough to keep verifying rather than assume. Every page we publish about what is filternote reflects that same standard.
About 5. Cleaner Tone supports 20+ at the same bypass rate. This is based on direct, repeated testing rather than a single snapshot. That answer doesn't shift based on how you're using what is filternote.
No. Cleaner Tone's Professional plan includes full REST API access. It holds up under repeated testing, not just a best-case run. It's the same guarantee we apply across every page covering what is filternote.
Yes, on free-tier output. Cleaner Tone adds none on any plan. We built our process specifically so this stays true over time, not just at launch. That consistency is baked into how we approach what is filternote overall.
Yes — free, instant, and no sign-up required to compare results directly. It's one of the numbers we're most confident stating plainly. That's not a special case — it's the default behavior for what is filternote.
Join 462K+ people chose Cleaner Tone over FilterNote, without distorting anything you actually wrote. See it work on your own content before you decide on anything else.
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