Undetectable AI
The guest Basic mode returned a readable report, but omitted the explicit 40-hour figure and added conversational padding. Paid Undetectable mode and detector bypass were not tested.
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Original and rewritten result
Basic / University / General Writing / Balanced / guest. Same benchmark; first complete output. Open any screenshot to inspect the original capture.


Original · 93 words
A local library tested a four-day schedule for six weeks. It kept the same 40 weekly opening hours, closing Wednesdays and extending Monday and Thursday evenings. Visits rose from 1,200 to 1,320 a week, although Wednesday visitors had to change plans. Staff reported fewer interruptions, but productivity was not measured. Longer evenings may help people who work during the day; this does not prove every library should open fewer days. Before making the change permanent, the team will survey residents, compare costs and repeat the trial in winter, when travel habits may differ.
First rewrite
A nearby library tried something new - they opened for just four days a week, but kept the same total hours. So, they closed on Wednesdays, and stayed open later on Mondays and Thursdays. It was a six-week test, and the results were interesting. More people visited the library - 1,320 per week, up from 1,200. Of course, people who used to go on Wednesdays had to find a new day. The staff said they had fewer interruptions, which was nice. But they didn't actually measure how much work they got done. It's possible that the longer evenings helped people who work during the day. However, this doesn't mean every library should cut back on days. Before making any big changes, the library wants to ask the community what they think, compare costs, and try the new schedule again in the winter - because people's habits might be different then.
Parameters and feature comparison
Observed features refer to the tested plan. “Not verified” is different from “not supported.”
| Parameter | Undetectable AI |
|---|---|
| Free access | The full sample completed in Basic without signup; main input showed 5,000-word cap. |
| Account required | No, for this completed guest run. |
| One-click rewrite | Yes, the complete sample produced a full output. |
| Word highlighting | No word-by-word change display verified in this workflow. |
| Line / sentence highlighting | No separate line or sentence change diff verified. |
| Selective rewriting | Not verified in the tested workflow. |
| API / MCP / Agent Skills | Official Humanization API v2 documents API-key authentication, submit and document retrieval endpoints. Not called live; MCP and skills not verified. |
| Paid plans | Monthly view: $19 for 20,000 words/month, $31 for 35,000, $42 for 50,000. Annual view includes 10,000 words/month for $60/year and 20,000 for $114/year. API Starter separately $29/month for 72,500 words; overage $0.40/1,000 words. |
| Billing unit | Web monthly word allowances with monthly or annual billing; API subscription allowance plus word-based overage. |
Score breakdown
| Dimension | Weight | Score | What we found |
|---|---|---|---|
| Meaning & facts | 30% | 8/10 | Most facts and caveats survived, but the explicit 40-hour figure was omitted. |
| Readability | 25% | 8/10 | Clear grammatical prose, expanded to 150 words from 93. |
| Natural voice | 15% | 6/10 | Interesting, nice and Of course add commentary without useful information. |
| Editing experience | 15% | 5/10 | Complete result modal and mode controls; no word diff or selective sentence replacement verified. |
| Access & value | 10% | 7/10 | Guest Basic sample completed free; stronger mode prompted signup and was not tested. |
| Integrations | 5% | 5/10 | Official humanization API authentication, submission and result-retrieval contract verified; no live API or client test. |
Overall 7.0/10 · weighted editorial judgment of the shown workflow. Read the method.
Undetectable AI review: a free Basic rewrite with extra padding
The guest Basic mode returned a readable report, but omitted the explicit 40-hour figure and added conversational padding. Paid Undetectable mode and detector bypass were not tested.
Read the analysis and recommendationSources and limits
- Official guest Basic result and mode restrictions · checked 2026-10-27
- Official monthly and annual word allowances · checked 2026-10-27
- Official API pricing · checked 2026-10-27
- Official humanization endpoint documentation · checked 2026-10-27
One short English sample and the first captured output in the stated mode. Paid models, long documents, external detectors and live integrations were not tested. Pricing is a dated snapshot; documentation is not an end-to-end integration test.