# GPTZero vs TextSight

GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. TextSight records 51,453 monthly visits with +35.8% growth and Freemium pricing.

| Metric | [GPTZero](https://openaitools.app/tool/gptzero-me) | [TextSight](https://openaitools.app/tool/textsight) |
| :--- | :--- | :--- |
| Website URL | https://gptzero.me | https://textsight.ai |
| Categories | AI Detector, AI Checker, AI Content Detector, AI Plagiarism Checker | AI Detector, AI Rewriter, AI Writing, AI Writing Assistants |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 23,246,989 | 51,453 |
| MoM Growth Rate | +32.5% | +35.8% |
| Primary Market | United States | United States |
| Direct Visits | 7,529,349 | 9,643 |
| Review Score | 4.1 | 3.9 |
| Saved Count | 41 | 0 |
| Supported Platforms | Website | Website |

## GPTZero

GPTZero grew out of the practical problem that teachers and editors faced once generative text became common: how do you tell whether a piece of writing came from a person or a model? The product answers that with a detector that returns an overall AI likelihood score and highlights individual sentences it considers machine-written, so a reader can see where the suspicion comes from rather than just receiving a single verdict.

Over time the platform widened from a single text box into a suite aimed at institutions. Detector results are paired with a plagiarism checker, grammar and writing feedback, and optional process verification such as a writing replay that records how a document was typed. A Chrome extension and Google Docs add-on push detection into the tools students and staff already use, and the company offers classroom integrations plus an API for bulk or programmatic checks.

Because the buyers are largely schools, districts, and universities, GPTZero leans heavily on privacy and compliance claims: it states SOC 2 Type II compliance and alignment with FERPA, GDPR, and CCPA, and says student writing is not used to train models. The practical takeaway is that it is positioned as an academic-integrity and editorial-review tool rather than a novelty checker, which also means its more powerful features sit in paid tiers.

**Pricing & Plans:** Freemium plus paid plans. A free tier provides core detection with character limits per scan, while paid individual and institutional plans unlock advanced scan modes, higher limits, writing reports, and classroom integrations. Enterprise and API access are quoted separately.

- **Sentence-level AI detection:** Paste text or upload a document and get an overall AI probability score plus a sentence-by-sentence breakdown of which parts look machine-written.
- **Multi-model coverage:** Flags AI text from major model families including ChatGPT, Gemini, Claude, Llama, and others, rather than training for a single model.
- **Browser and docs extensions:** A Chrome extension and Google Docs add-on bring scanning into Gmail, Docs, Classroom, and other surfaces you already work in.
- **Plagiarism checking:** Checks content for copied passages from outside sources so you can separate AI-generation questions from originality questions.
- **Writing process verification:** Writing replay and advanced reports offer evidence about how a document was produced, useful for academic integrity workflows.

**Strengths:** Sentence-level highlighting shows why a passage was flagged instead of only giving a score; Covers text from many different AI model families, not just one chatbot; Integrations with Chrome, Google Docs, Canvas, and Google Classroom fit existing school workflows; Publishes concrete compliance claims (SOC 2 Type II, FERPA, GDPR, CCPA) that institutions can review

**Limitations:** Detection is probabilistic and can flag polished human writing or miss lightly edited AI text; Free scans are capped by character count, and useful reporting features require payment; Lean heavily on a single score without human judgment can lead to unfair accusations

[Profile (Markdown)](https://openaitools.app/tool/gptzero-me.md)

## TextSight

Most AI-detector sites stop at a percentage. TextSight is built as a workflow instead: you detect, you fix the flagged sentences with the built-in humanizer, and you re-run the check in the same tab to see whether the score actually improved. That loop is the core of the product, and it is why detection and rewriting live under one roof rather than in two separate subscriptions.

Under the hood there is a multi-model detector trained on output from ChatGPT, Claude, Gemini, Llama and Mistral, a 0–100 Humanization Score, and a rewrite engine that only touches the passages you flag. Around that core sit roughly twenty smaller writing utilities — grammar, readability, paraphrasing, summarisation, translation — plus a Chrome extension and add-ons for Word and Google Docs.

TextSight is unusually forthcoming about the limits of detection. It published a benchmark of 1,180 human-written academic papers from 2018, before GPT-3 existed, and reports a 5.85% false-positive rate on that corpus, with the dataset, analysis script and methodology downloadable. The company explicitly labels this its own testing rather than independent third-party validation, and tells educators to treat any score as one signal rather than proof.

**Pricing & Plans:** Freemium. The free tier gives 3 actions a day (around 1,000 words per scan without an account, ~1,500 with one; 260 words per humanization) using the same detector as paid plans. Starter is $9.99/mo, Pro $19.99/mo, Business $39.99/mo and Enterprise $79.99/mo, with annual billing discounting roughly 63%. Lower tiers include 20 daily actions and 40,000 humanizer words a month; Pro adds file upload and 5,000 API calls; higher tiers add team seats, bulk scanning, SSO and more API volume. No card is required to start, and plans can be changed or cancelled from settings.

- **Sentence-level AI detection:** Every sentence gets its own AI confidence score and colour code inside your text, so you can see which lines to fix instead of reacting to one blunt overall verdict. Sentence-level detail starts on the Starter plan.
- **Humanization Score:** A 0–100 score that rises as your writing becomes more natural, recomputed on every scan so you can watch the number move as you edit.
- **Targeted AI humanizer:** The humanizer rewrites only the passages that read as AI-written, keeping your meaning and tone. Free accounts get around 260 words per rewrite; paid plans add thousands of words a month plus Advanced, Business and Casual modes.
- **Detect, humanize, recheck in one place:** Detection, rewriting and re-scoring happen in one window. After a humanize pass you recheck the same text and compare the before-and-after AI percentage side by side.
- **Writing toolset and integrations:** About 20 supporting tools cover grammar, readability, paraphrasing, summarisation and translation, with a Chrome extension for right-click scanning of any text in your browser and add-ons for Word and Google Docs.

**Strengths:** Detection, humanizing and rechecking all happen in one window with no copy-paste between tabs; The free tier runs the same detector as the paid plans, so accuracy is not paywalled; Sentence-level flags point at specific lines rather than giving a single opaque score; The company publishes its own false-positive benchmark, dataset and methodology

**Limitations:** \"Humanization Score\" and AI probability are its own detector's numbers, so they are not an independent verdict; Heavy users (bulk files, folder libraries, team seats) must move to mid or top tiers; Detector accuracy is calibrated mainly on English text; other languages are weaker; False-positive testing is self-run and the vendor explicitly says it is not third-party validation

[Profile (Markdown)](https://openaitools.app/tool/textsight.md)

## Frequently Asked Questions

### How do GPTZero and TextSight compare in monthly traffic?

GPTZero has 23,246,989 monthly visits, while TextSight has 51,453. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

GPTZero has a month-over-month growth rate of +32.5%; TextSight has +35.8%.

### How does pricing compare?

GPTZero: Freemium, Paid. Freemium plus paid plans. A free tier provides core detection with character limits per scan, while paid individual and institutional plans unlock advanced scan modes, higher limits, writing reports, and classroom integrations. Enterprise and API access are quoted separately. TextSight: Freemium. Freemium. The free tier gives 3 actions a day (around 1,000 words per scan without an account, ~1,500 with one; 260 words per humanization) using the same detector as paid plans. Starter is $9.99/mo, Pro $19.99/mo, Business $39.99/mo and Enterprise $79.99/mo, with annual billing discounting roughly 63%. Lower tiers include 20 daily actions and 40,000 humanizer words a month; Pro adds file upload and 5,000 API calls; higher tiers add team seats, bulk scanning, SSO and more API volume. No card is required to start, and plans can be changed or cancelled from settings.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Paraphrase, proofread and summarize text with an AI writing workspace | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 2 | [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | +19.7% | Freemium, Paid | AI content detection and a full writing toolkit in one place | [.md](https://openaitools.app/tool/zerogpt.md) |
| 3 | [HumanizeAI.pro](https://openaitools.app/tool/humanizeai-pro) | 9,652,312 | +26% | Free | Free browser AI humanizer that rewrites AI text to read naturally | [.md](https://openaitools.app/tool/humanizeai-pro.md) |
| 4 | [Scribbr](https://openaitools.app/tool/scribbr) | 7,530,803 | +14.6% | Freemium | Combines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service. | [.md](https://openaitools.app/tool/scribbr.md) |
| 5 | [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | +17.5% | Freemium | Combines AI detection with robust text humanization tools, but focuses more heavily on rewriting than pure verification. | [.md](https://openaitools.app/tool/undetectable-ai.md) |
| 6 | [StealthWriter](https://openaitools.app/tool/stealthwriter) | 2,887,114 | +15.5% | Freemium | Humanize AI text and check how human it reads | [.md](https://openaitools.app/tool/stealthwriter.md) |
| 7 | [Copyleaks](https://openaitools.app/tool/copyleaks) | 2,402,494 | -14.1% | Paid, Contact for Pricing | Provides robust enterprise-grade content integrity and cross-media detection, but can be more expensive for individual users. | [.md](https://openaitools.app/tool/copyleaks.md) |
| 8 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | AI detector, plagiarism and content-quality checks in one scan | [.md](https://openaitools.app/tool/originality.md) |
| 9 | [Isgen AI Detector](https://openaitools.app/tool/isgen-ai) | 901,917 | +5.8% | Freemium | Multilingual AI detector with sentence-level insight | [.md](https://openaitools.app/tool/isgen-ai.md) |
| 10 | [GPTinf](https://openaitools.app/tool/gptinf-com) | 674,246 | +25.8% | Freemium, Free Trial, Paid | Humanize AI text and detect it — one clean, all-in-one writing suite | [.md](https://openaitools.app/tool/gptinf-com.md) |

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Source: https://openaitools.app/compare/gptzero-me-vs-textsight

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