You drafted something in Google Docs and you want to know how AI it reads before submitting, delivering, or publishing. You should not have to hand over an email, a card, or sit through a signup wall just to find out. TextSight runs the first 3 scans every day anonymously: open your Doc, press Cmd/Ctrl+A then Cmd/Ctrl+C, paste up to 5,000 characters into app.textsight.ai, click Scan. The Authenticity Score, sentence-level highlights, and Plagiarism Risk indicator all render in place. Detects Gemini, Help me write, the older Duet AI Workspace assistant, plus ChatGPT, Claude, and Llama output. Same multi-model classifier paid users get.
Most "free" AI detectors give you one tiny scan and then beg for payment. TextSight scopes the anonymous tier specifically around the typical Google Docs use loop: draft, revise, pre-submission check.
Counter resets at midnight UTC. Tied to your browser session and IP, not to an email. For a student writing in Docs this covers a draft, a revision, and a final pre-submission pass on the same day. For a Docs-based content team it covers three quick pre-publish checks. The cap is generous enough that casual users almost never hit it.
Roughly 800 words, the standard college essay length. A typical Google Doc page at 11pt Arial holds around 2,500 characters, so a single scan covers about two Doc pages. Longer pieces split into sections, scanned one at a time within the daily three-scan budget. Pro raises the per-scan cap to 10,000 chars and unlocks DOCX upload for long research drafts.
Green, yellow, red on each sentence so you see exactly which lines drove the score. Not paywalled, not summarised into a single overall percentage. Most competitor free tiers hide highlights behind a paid plan; TextSight ships them on the anonymous path because a number without evidence is hard to act on when you flip back to your Doc to rewrite.
We do not collect a card to start. There is no 7-day trial that converts to billing. The free tier is just free, indefinitely, with daily resets. The first scan does not even require an account. Signup only becomes useful once you want history sync across devices, the .edu discount, or any paid feature.
No native Workspace add-on yet (honest scope, 2026 roadmap). The paste flow takes well under thirty seconds and returns the same Authenticity Score the future sidebar will surface.
Open your Google Doc. Highlight the paragraph, section, or whole draft. Use Cmd+A (Mac) or Ctrl+A (Windows, Chromebook, Linux) to select the entire document. Copy with Cmd+C or Ctrl+C. Paragraph breaks, headings, and bullet lists ride along with the plain-text payload, so the sentence-level highlights line up cleanly with the structure of your Doc.
The detector renders immediately. No login prompt, no modal, no email gate. The text input is ready to receive the paste. If you have used the detector before on this browser, the daily quota counter shows in the corner; if not, you start with the full 3 anonymous scans available.
Cmd+V or Ctrl+V into the text box, hit Scan. The result returns in about five seconds for an 800-word piece, six seconds for a 1,500-word piece. The Authenticity Score appears at the top, sentence-level highlights render below, and the per-sentence reasons (vocabulary tell, rhythm pattern, perplexity, structural symmetry) populate on hover.
Flip back to your Doc, rewrite the flagged sentences in place, then paste the revised draft back into TextSight for a second scan. Most pieces go from red to green in two or three iteration cycles. If a sentence flags on every pass, the integrated AI rewriter rewrites it in one click; paste the rewritten line back into the Doc.
Want this to be a one-click action instead of four steps? Install the free TextSight Chrome extension after signing up on Starter. On any docs.google.com tab you can right-click selected text and pick Scan with TextSight. The result opens in a popup without leaving the Doc.
3 anonymous scans a day at 5,000 chars covers most personal Docs use indefinitely. Paid tiers add unlimited scans, file upload, the integrated AI rewriter at scale, and team features. Full details on the pricing page.
Billed $89.88/year — Save $30
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Yearly billing saves 25%. View full pricing →
A lot of "Google Docs AI detector" pages promise a native sidebar inside Docs and then quietly send you to a Chrome extension or a web app instead. The honest 2026 status is below.
Add-ons that touch document content need an OAuth verification round, a privacy review, and a Workspace security review. We are building the add-on, but we would rather ship it correctly than push a half-baked sidebar that leaks Doc text or gets pulled after launch. The 2026 roadmap targets a listed add-on, with no firmer date than that.
Select All, copy, paste, scan. The whole loop takes under fifteen seconds for a typical Doc. For long-form research drafts above 5,000 characters per scan, Pro at $14.99 effective on annual unlocks DOCX upload, which preserves headings and list structure exactly as Docs renders them.
The TextSight Chrome extension lets you right-click selected text on any docs.google.com tab and run a scan in a popup without leaving the Doc. It needs a Starter signup or above (the extension is the part that needs an account, not the scan itself). For users who write entirely in Docs, this removes the tab-switching friction the native add-on will eventually replace.
Native add-ons run inside a throttled iframe with restricted network calls and limited UI surface area. Long-form sentence highlighting, the three AI rewriter modes (Light, Balanced, Maximum), and the Plagiarism Risk panel are all easier to render on the full web canvas. The roadmap plan is to ship the full experience on the web first, then port the most useful pieces into a sidebar that does not disappoint.
Google Docs now ships with built-in AI writing assistance. Help me write, the Gemini side panel, and Smart Compose long-form completions all generate text directly inside your Doc. If you accept those suggestions, that text is AI-generated, even if you wrote the surrounding paragraph yourself.
Help me write and the Gemini side panel are drafting assistants. They produce paragraphs, expand bullets into prose, and rewrite for tone. Neither tool gives you a number for how AI-shaped the output is. TextSight is the inverse: it does not generate text, it scores text. The realistic 2026 workflow uses both, with Help me write on the drafting side and TextSight on the pre-publish side.
The classifier is trained on outputs from Gemini 1.5, Gemini 2.0, and Gemini 2.5 Pro alongside GPT-4, GPT-4o, Claude 3.5, and Llama. Help me write drafts and Smart Compose long-form completions flag at the same fidelity as ChatGPT content. Free tier scans use the same classifier as paid tier scans, so detection quality does not change with your plan.
A common misconception is that Google's own detector would obviously be best at catching Google's own AI. In practice the opposite tends to be true. Detectors built by labs that also build the models have a conflict of interest and tend to under-flag their own outputs. An independent detector like TextSight, with no allegiance to any specific model provider, can be franker about what looks synthetic. Gemini, Duet, ChatGPT, Claude, Llama, and Mistral output all score on the same rubric.
Some writers think wrapping AI text in Suggesting-mode edits or inline comments will change the score. It does not. TextSight reads the final rendered text the way a reader sees it. To audit the original draft, reject all suggestions first or paste a fresh copy. The scan reflects what the next reader will read, which is the right thing to optimise.
Editorial workflows live in Docs because of comments, Suggesting mode, and shared access. Multiple writers do not change the scan path; the result reflects the combined draft regardless of who contributed which paragraphs.
Comments, tracked changes, Suggesting-mode edits, and author metadata are stripped on copy. The paste payload is plain prose, which is exactly what a reader sees. A shared Doc with two or three writers paste-scans the same as a solo Doc, with sentence-level highlights pointing at the lines that read AI.
You do not need edit rights or ownership of the document. View access is enough to select the text, copy it, and paste it into TextSight. Useful for editors auditing freelance drafts, agencies reviewing client Docs before publication, and lecturers spot-checking student submissions linked from Classroom.
Pasting each major revision into TextSight builds a per-document trend. A draft that gets longer without the score moving usually has structural AI patterns (template paragraph openings, flat sentence rhythm) that need addressing earlier than expected. Free tier covers three scans a day; Business at $29.99 effective on yearly adds team-wide scan history so leads can see where stock phrasing entered across authors.
The most common shared-Doc pattern: one author drafts manually, another uses Help me write for a tricky paragraph. The sentence-level highlights catch the AI portions and leave the human prose alone. The editor can rewrite just the flagged lines without questioning the whole draft, which is faster and less politically charged than a "this whole section reads AI" comment thread.
The main Google Docs overview with the paid feature set and full workflow write-up.
Open the overview →Anonymous quota across any text source, with detail on how the no-signup path works.
See the no-signup page →Right-click to scan on any docs.google.com tab once you sign up on Starter or above.
See the extension →Full tier breakdown for Free, Starter, Pro, and Business. Annual billing saves 25%.
See pricing →No signup, no card, 3 anonymous scans per day at 5,000 characters per scan. Same multi-model classifier paid users get. Open the app, paste, read the score in about five seconds.