AI Detect vs Grammarly
Side-by-side comparison of features, pricing, ratings, and alternatives.
AI Detect is a web-based platform that combines a powerful AI detector with an AI humanizer, allowing users to identify AI-generated text and rewrite it to appear more human. The service claims 99% accuracy on major AI models like ChatGPT, Google Gemini, Claude Opus, Meta LLaMa, and Mistral AI, making it a go-to tool for verifying content authenticity. Beyond detection, AI Detect provides readability and grade level scoring, helping users refine their content for clarity and target audiences. With a free tier and flexible weekly, monthly, or yearly plans, it is designed for students, writers, marketers, and businesses seeking to maintain content originality and trust in an age of generative AI.
Grammarly is an AI writing assistant that checks grammar, spelling, punctuation, and style in real time across browsers, desktop apps, and mobile keyboards. It integrates directly into Gmail, Google Docs, Microsoft Word, Slack, and thousands of other websites via a browser extension. Beyond basic correctness, Grammarly analyzes tone and clarity, suggesting rewrites to make writing more concise, confident, or friendly depending on the context and audience selected by the user. GrammarlyGO adds generative AI features for drafting emails, replying to messages, and rewriting passages on demand, while Grammarly Business adds brand style guides and analytics for teams that need consistent written communication across an organization.
Free for basic corrections; Premium starts at $12/month, Business at $15/user/month.
- Free to use with a generous detection allowance
- 99% accuracy on popular AI models including ChatGPT and Gemini
- Built-in AI humanizer to make AI text undetectable
- Fast, actionable AI detection scores
- Works across almost every app via browser extension
- Good tone and clarity suggestions beyond basic grammar
- GrammarlyGO speeds up drafting
- Free tier is genuinely useful
- Limited to 5 uses on the free tier (as indicated)
- No mobile app mentioned
- Potential privacy concerns for submitted content
- Accuracy may vary across edge cases
- Premium features behind a subscription
- Occasional over-aggressive suggestions
- Privacy concerns for some sensitive writing contexts
What reviewers say
AI Detect Reviews
No reviews yet.
Grammarly Reviews
3.0 (2)Good, not great
Grammarly is solid overall, though it's not perfect. On the plus side, good tone and clarity suggestions beyond basic grammar. That said, premium features behind a subscription, which held us back from rating it higher.
Good, not great
Mixed feelings about Grammarly after using it for a while. On the plus side, free tier is genuinely useful. That said, privacy concerns for some sensitive writing contexts, which held us back from rating it higher.
More alternatives & similar tools
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Detects and rewrites AI-generated text so it reads as naturally human-written.
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The Verdict
AI-generated from listing dataAI Detect offers a free, high‑accuracy AI‑text detector with a built‑in humanizer, while Grammarly provides a broader writing‑assistant suite with grammar, tone, plagiarism, and cross‑app integration at a paid tier.
Key differences
- •AI Detect focuses solely on AI detection/humanization; Grammarly covers grammar, tone, plagiarism, and AI drafting.
- •AI Detect’s free tier allows 5 detections per month; Grammarly’s free tier offers unlimited basic grammar checks.
- •Grammarly works across many platforms (web, desktop, mobile, browser extensions); AI Detect only mentions a web interface with drag‑and‑drop upload.
- •Grammarly includes integrations with Gmail, Google Docs, MS Word, Slack; AI Detect lists no integrations.
- •Pricing model: AI Detect has unspecified paid plans (weekly/monthly/yearly); Grammarly’s Premium starts at $12/month.
Pricing & value
Grammarly offers a clear free tier and $12/mo Premium; AI Detect’s paid pricing is unspecified beyond weekly/monthly/yearly.
Ease of use / learning curve
AI Detect provides a simple drag‑and‑drop web UI; Grammarly requires installing extensions or apps across platforms.
Features & depth
Grammarly includes grammar, tone, plagiarism, AI drafting, and cross‑app support; AI Detect only detects and humanizes AI text.
Integrations & ecosystem
Grammarly lists integrations with Gmail, Google Docs, Word, Slack; AI Detect lists none.
Collaboration
Grammarly offers brand style guides for teams; AI Detect has no collaboration features mentioned.
Scalability
Grammarly supports business plans and multiple users; AI Detect’s usage limits and scaling options are not detailed.
Support & security
Grammarly provides help‑center and email support; AI Detect notes potential privacy concerns and no support details.
Choose AI Detect if…
Content creators needing occasional free AI‑text detection and humanization without broader writing tools.
Choose Grammarly if…
Professionals or teams needing comprehensive grammar, tone, plagiarism, and AI drafting across many apps.
Common questions
Can I use AI Detect for free?
Yes, a free tier provides up to 5 AI detection uses per month.
Does Grammarly detect AI‑generated text?
Not specified in the provided facts; Grammarly’s listed features focus on grammar, tone, plagiarism, and AI drafting.
Which tool integrates with my existing workflow (e.g., Gmail, Google Docs)?
Grammarly integrates with Gmail, Google Docs, Microsoft Word, and Slack; AI Detect lists no integrations.