TextSight

What is TextSight?

TextSight is a web-based AI content detection and rewriting tool. It analyzes pasted text, uploaded documents, or scanned URLs to identify AI-generated content sentence by sentence. It reports results using an Authenticity Score from 0 to 100, along with per-sentence breakdowns and detection signals.

The tool also includes an AI Rewriter that generates sentence-level rewrite suggestions intended to reduce AI-like patterns while preserving the original meaning. TextSight states that no detector is 100% accurate and that results may vary by content type, writing style, model version, and editing level.

TextSight's detector supports English, while the Rewriter supports 50+ languages. It is available on the web, iOS, and Android. The service is operated by Lacewing Technologies.

How to use TextSight?

1. Paste or provide text — Paste text directly, upload a .docx or .pdf file, scan a URL, or submit a batch through the API.
2. Analyze — TextSight's v4 model runs five classifiers that vote on every sentence: perplexity, burstiness, stylometry, embeddings, and a transformer head.
3. Act on the result — Review the Authenticity Score and Rewrite Suggestions. Apply suggestions one by one, or run the full AI Rewriter.

A free tier allows 3 scans per day, up to 5,000 characters each, without a credit card. Paid plans increase scan limits, character allowances, and rewriter word counts.

Core features of TextSight

Sentence-by-sentence AI highlighting

Each sentence receives its own confidence score, color-coded inside the text. The Authenticity Score rolls these up into a 0–100 number.

Model attribution

TextSight fingerprints stylistic patterns to estimate the model family behind the text, such as ChatGPT, Claude, Gemini, or Llama 3.

One-click AI Rewriter

The Rewriter rewrites flagged sentences at the sentence level. Numbers, names, and citations are locked as anchors. Tone options include conversational, professional, academic, blog, and email.

Rewrite Suggestions

For every flagged sentence, TextSight provides a one-click rewrite intended to keep the meaning while removing the AI tell. Suggestions per scan are shown as approximately 6–12.

Detection signals

TextSight reports signals including perplexity, burstiness, sentence variance, vocabulary range, and readability grade.

Privacy controls

Scans save to history by default, and a switch turns that off. TextSight states it is GDPR-aware, retention can be 0 seconds, and text is never used to train models.

20 free AI writing tools

TextSight includes 20 supporting tools categorized as Detect (5), Write (5), Refine (5), and Research (5). These include an AI Detector, Hallucination Detector, AI Image Detector, AI Voice Detector, Plagiarism Checker, AI Rewriter, Paraphraser, Summarizer, Translator, Essay Outline Generator, Grammar Checker, Readability Score, AI Vocabulary, Word Counter, Text Compare, Fact Checker, Citation Generator, YouTube Summarizer, PDF Summarizer, and URL Summarizer.

Use cases of TextSight

Students

Check an essay before submission and fix parts that read like ChatGPT without losing the argument. Academic tone preset and a Citation Generator are built in.

Writers and bloggers

Detect AI in drafts, rewrite stiff passages, and keep your own voice. Voice-preserving rewrite, Chrome and Word extensions, and a monthly rewriter word allowance are offered.

SEO and marketers

Audit a content library and rewrite underperforming pieces at scale via API. Bulk scan up to 10,000 URLs and use the WordPress plug-in.

Educators

Use sentence-level evidence and model attribution for defensible AI flagging. Canvas and Moodle LMS integration and class-wide bulk scans are supported.

Frequently asked questions about TextSight

How accurate is TextSight at detecting AI content?

TextSight states it is tested on an internal benchmark across major AI writing tools including ChatGPT (GPT-3.5, GPT-4, GPT-4o), Claude, Gemini, and Llama 3. It treats any single verdict as one signal and states that no detector is 100% accurate. Results may vary by content type, writing style, model version, and editing level. The model is continuously updated.

What is the Authenticity Score?

The Authenticity Score is a 0–100 metric indicating how human text sounds. A higher score means the content reads more naturally. It is computed on every scan and every AI Rewriter rewrite so you can track progress as you edit.

Is there a free plan?

Yes. The free plan provides 20,000 characters of detection per month, up to 5,000 per scan, AI detection, authenticity scoring, and 2,000 rewriter words per month. No credit card is required.

How are Rewrite Suggestions different from other tools?

Unlike detectors that only flag problems, TextSight provides sentence-level rewrite suggestions that can be applied with one click, intended to make text sound more natural while preserving the original meaning.

Does TextSight offer an API?

API access is available on Pro, Business, and Enterprise plans. Pro includes 5,000 API calls per month, Business 10,000, and Enterprise 50,000. The REST API supports text analysis and batch processing.

What file types can be uploaded for scanning?

PDF and DOCX files can be uploaded. Direct text paste and URL scanning are also supported. Enterprise users can bulk scan up to 500 documents at once.