AI Detector: does your draft still read like AI?
No detector is always right. We show which sentences carry AI tells and why — treat the score as a starting point, not proof. Free with no daily limit.
| File | Words | AI Score | Verdict | Next Step |
|---|
Drop file here
.txt, .pdf, .docx
Detection results and saved tasks appear here
Paste at least 30 words, analyze once, then continue the task, share the result, or save it locally in this browser.
Recent Tasks
Analyzing patterns...
Running three scoring passes
No detector is always right. Read the highlighted sentences, not just the number.
Run a scan to see which sentences contributed most to the score.
Words
--Sentences
--Avg Len
--Unique
--Linguistic
--AI Model
--Ensemble
--AI detectors can flag text that may be AI-generated, but the result is not proof of authorship. Do not rely on one detector alone for academic, hiring, or other high-stakes decisions.
Result explanation
Run a detection pass to see what the score means.
The result panel will explain how to interpret the score, what it means for this draft, and which next step makes the most sense.
What this means
Use the score as a review signal, then inspect the highlighted passages before you decide on the next action.
Main risk
High-stakes text should not rely on a single detector result without sentence review or a second opinion.
Trust it when
Treat this as a bounded review signal when the sentence highlights and the draft context tell the same story.
Look further when
Look further only if the highlighted lines or your own reading suggest more than the score does.
Shareable summary
Recommendation path
Share note
Decision guide
Run a detection pass first so the next step is based on the actual result.
Get a second opinion ↗
OptionalUse compare when you need a second detector perspective before changing the draft.
Rewrite a stiff section
OptionalUse the rewriter when a whole section reads stiff and a few sentence edits will not fix it.
If a sentence you wrote is flagged, keep your drafts. If you want clearer wording, the Rewriter can help.
Continue a recent result or pin it as a saved task.
Detector task history stays local to this browser and only keeps bounded task metadata.
Only single-text detector tasks are stored in `localStorage` on this device. Nothing here syncs to an account, team, workspace, API, or server database.
Local detector tasks auto-expire after 30 days. Delete any single card from Recent or Saved, or use `Clear local tasks` to wipe everything now. Batch runs, downloads, and copied/shared summaries are not kept as long-term history.
Resume detector work from one local entry point.
This job home keeps detector jobs in one local-first place so you can return from saved work or continue the latest task.
Everything here stays in `localStorage` on this browser only. Nothing syncs to an account, server, team, workspace, or API.
Recent jobs surface what you touched last. Saved jobs pin the items you expect to revisit later. Each card keeps the primary path first and the alternate path second.
Shared summaries travel outside the app. Saved jobs stay here as your local return point with the proof memory that explained why the next step was trusted or switched. Clear or delete any item when you no longer want it kept for up to 30 days.
This stays free and local-first today. If real before/after evidence, bookmark, email, sync, account-level memory, export packs, or shared handoff layers come later, they should extend saved proof context without blocking the free local job now.
Checking something longer than 3,000 words?
A free account raises this check to 12,000 words — no card. It also gives the writing tools 5 free uses a day instead of 3. Detection stays unlimited and free either way. Saved tasks stay on this device; nothing syncs.
Create Free AccountChecking a lot of drafts?
The Chrome extension checks selected text on any page from the right-click menu, which is faster than pasting. There is no bulk or API option — if that is what you need, we do not have it.
| # | Sentence | Tell score | Verdict |
|---|
What drove this verdict
Sentence-level detail
| # | Sentence | Tell score | Fired flags & what they mean |
|---|
Flags are evidence, not proof. Each one marks a pattern that shows up more often in machine-generated text — but every pattern here also appears in some human writing. Read the flags together with the sentence, not instead of it.
Analysis Details
Use the detector as a review workflow, not a verdict button.
Paste a real draft
Use enough text for the detector to see sentence context, not just isolated fragments that can overstate or hide a pattern.
Review the hotspots
Look at the score together with sentence-level highlights and explanation cards before you decide what the result means.
Choose the next path
Rewrite the flagged lines, keep the draft as it is, or rewrite a broader section — and run a second detector yourself if the submission is one that matters.
What the detector actually analyzes.
Sentence pattern review
The detector checks variation in sentence structure, vocabulary, and rhythm to spot language that feels too uniform or mechanically predictable.
Pattern score
The detector highlights sentence-level patterns associated with AI writing — sentence variance, punctuation density, and known AI phrasing.
Combined interpretation
The final read blends the model result with pattern evidence so a single signal does not decide the whole judgment on its own.
Built for review contexts where a single score is not enough.
Screen student submissions
Run a first-pass integrity check, then inspect the flagged lines before you decide whether a draft needs a conversation, not just a score screenshot.
Audit your own draft
If you used AI for brainstorming or outlining, the detector can help you see whether the finished submission still carries patterns you want to revise first.
Review client or contributor copy
Check whether a draft needs a second detector opinion, light human cleanup, or a broader rewrite before it enters an editorial workflow.
Stress-test formal writing
Academic and report-style prose can trigger false positives, so sentence-level review is useful when you need to distinguish template-like structure from actual detector risk.
Start free, keep the first-pass review intact.
Unlimited checks, sentence review, local saves
Higher usage, shared writing suite access, faster workflows
100K words a month, no per-request word cap, 3 brand voices
Dig deeper into AI detection.
Best-of lists
Terms explained
What people ask before they trust a detector result.
How accurate is the AI detector?
Can I start using the detector right away?
What file formats can I upload?
What should I do if a sentence is flagged?
How long does analysis take?
Which AI tools does it detect — ChatGPT, Claude, Gemini?
Why might my human-written text score as AI?
Is my text sent to any server when I analyze it?
How does access work compared with other writing tools?
Do I need to create an account?
Can I pay with cryptocurrency?
Is it safe for academic use?
Does it work on mobile?
Is there a Chrome extension?
How does this compare to GPTZero?
Coda One's AI Content Detector is built for fast screening with sentence-level context. Use it to read the marked passages and get a second opinion when the stakes are high. A score describes the writing; it is not proof of who wrote it.
More AI Tools: All Tools ·vs GPTZero ·AI Humanizer ·AI Rewriter ·Grammar Checker