# GPTZero vs Grain

GPTZero records 23,246,989 monthly visits with +32.5% month-over-month growth and Freemium, Paid pricing. Grain records 174,166 monthly visits with -14.8% growth and Freemium, Free Trial, Contact for Pricing pricing.

| Metric | [GPTZero](https://openaitools.app/tool/gptzero-me) | [Grain](https://openaitools.app/tool/grain) |
| :--- | :--- | :--- |
| Website URL | https://gptzero.me | https://grain.com |
| Categories | AI Detector, AI Checker, AI Content Detector, AI Plagiarism Checker | AI Note Taker, AI Meeting Assistant, AI Summarizer, AI Transcription |
| Pricing Model | Freemium, Paid | Freemium, Free Trial, Contact for Pricing |
| Monthly Visits | 23,246,989 | 174,166 |
| MoM Growth Rate | +32.5% | -14.8% |
| Primary Market | United States | United States |
| Direct Visits | 7,529,349 | 132,250 |
| Review Score | 4.1 | 4.5 |
| Saved Count | 41 | 1 |
| 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)

## Grain

Grain began as a meeting recorder with good clips and has repositioned around a sharper idea: the value of a meeting is not the summary, it is the context it hands to whatever comes next. Capture is deliberately flexible. Bot-less transcription records your computer's audio without an unfamiliar participant joining the call, a bot can attend on your behalf when you cannot, capture rules decide automatically which meetings get recorded, and typed notes, clips and flags taken live sync straight into the transcript.

The transcripts themselves are the differentiator. Rather than raw text, Grain produces enriched Markdown that carries participant identity and cross-meeting context across more than 100 languages, so an agent asking about a customer gets history rather than one isolated call. From there, teams bulk-export to Claude or ChatGPT, query transcripts and full meeting history through an MCP server and API, or simply ask questions inside Grain and get answers with precise citations.

For teams, sharing clips, projects and recordings, automatic group sharing, and HubSpot or Salesforce sync remove the post-call data entry that sales and customer success teams dread. Grain offers a free forever individual plan with unlimited meetings up to 45 minutes and 30-day history, Pro at $15 a month for one person, and Business at $29 per seat per month billed annually with a shared workspace. It holds SOC 2 Type II, is GDPR compliant, and states that customer data is not used for model training.

**Pricing & Plans:** Freemium, Free Trial, Contact for Pricing

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

## Frequently Asked Questions

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

GPTZero has 23,246,989 monthly visits, while Grain has 174,166. 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%; Grain has -14.8%.

### 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. Grain: Freemium, Free Trial, Contact for Pricing. Freemium, Free Trial, Contact for Pricing

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | +19.7% | Freemium, Paid | Offers broad multilingual AI detection and text humanization, but lacks GPTZero's detailed deep-scan reporting features. | [.md](https://openaitools.app/tool/zerogpt.md) |
| 2 | [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) |
| 3 | [Otter AI](https://openaitools.app/tool/otter-ai) | 7,360,981 | +9.6% | Freemium | Provides highly accurate live transcription and team chat summaries, but has weaker video clip editing features than Grain. | [.md](https://openaitools.app/tool/otter-ai.md) |
| 4 | [Fathom](https://openaitools.app/tool/fathom-2-0) | 5,620,385 | +0.2% | Freemium, Free Trial | Delivers generous free video recording and AI summaries, but offers less advanced custom workflow automation than Grain. | [.md](https://openaitools.app/tool/fathom-2-0.md) |
| 5 | [Fireflies.ai](https://openaitools.app/tool/fireflies-ai) | 4,411,502 | +3% | Freemium | Offers robust enterprise conversation search and CRM integrations, but lacks Grain's focus on video clip clipping and sharing. | [.md](https://openaitools.app/tool/fireflies-ai.md) |
| 6 | [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) |
| 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 | Delivers strong fact-checking and comprehensive site-wide plagiarism audits, but has stricter paywalls than GPTZero. | [.md](https://openaitools.app/tool/originality.md) |
| 9 | [tl;dv](https://openaitools.app/tool/tldv-io) | 1,396,729 | +1.9% | Freemium | Great for recording global video calls with translation support, but features a less streamlined workflow for highlight clips. | [.md](https://openaitools.app/tool/tldv-io.md) |
| 10 | [Isgen AI Detector](https://openaitools.app/tool/isgen-ai) | 901,917 | +5.8% | Freemium | Provides detailed sentence-level analysis for multilingual text, but lacks GPTZero's broad academic brand recognition. | [.md](https://openaitools.app/tool/isgen-ai.md) |

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

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