# Clever AI Detector vs Side Reader Clever AI Detector records 8,562,719 monthly visits with +44.5% month-over-month growth and Free pricing. Side Reader records 355 monthly visits with -36.5% growth and Freemium pricing. | Metric | [Clever AI Detector](https://openaitools.app/tool/clever-ai-detector) | [Side Reader](https://openaitools.app/tool/side-reader) | | :--- | :--- | :--- | | Website URL | https://cleverhumanizer.ai/ai-detector | https://www.side-reader.com | | Categories | AI Content Detector, AI Detector, AI Checker | AI PDF, AI Reader, AI Chatbot, AI PDF Summarizer | | Pricing Model | Free | Freemium | | Monthly Visits | 8,562,719 | 355 | | MoM Growth Rate | +44.5% | -36.5% | | Primary Market | United States | Vietnam | | Direct Visits | 2,583,691 | 149 | | Review Score | 3.5 | 2.4 | | Saved Count | 0 | 0 | | Supported Platforms | Website | Website | ## Clever AI Detector Clever AI Detector is the detection half of the Clever Humanizer suite. Its single job is to estimate how likely a piece of writing is to have been generated by an AI model, and to be transparent about the fact that this is an estimate. Rather than stamping a red verdict on any text with tidy grammar, it reports a 0–100 AI probability alongside the sentences that carried the strongest machine-like signals. The engine works by combining statistical indicators — how predictable the word choices are, how uniform the rhythm is, and how often characteristic AI phrases appear — with pattern matching trained on large collections of human and AI writing. Each sentence is scored separately, so a mostly human document with a handful of templated paragraphs shows up clearly in the highlights. It is free to the point of being unusual: 10,000 words per check, unlimited runs, no ads, and no paywall hiding the sentence-level detail. The team also publishes its accuracy caveats openly, noting that false positives are likelier on overly formal or heavily edited prose. The detector sits alongside the site's AI humanizer, paraphraser and grammar checker, so you can detect a problem and then rewrite it in the same workspace. **Pricing & Plans:** 100% free — no ads, no paywall, up to 10,000 words per check with unlimited runs. Signing up is optional and only adds saved check history. - **Probability score, not a verdict:** A 0–100 AI probability score reads the text statistically instead of issuing a blunt verdict. - **Sentence-level signals:** Individual sentences with strong AI signals are highlighted so you can see exactly what triggered them. - **10,000 words, unlimited runs:** Check up to 10,000 words per run, repeatedly, at no cost and with no paywall on the detailed result. - **No sign-up to check:** Paste text or upload a file and get a result in seconds — no account required to run a check. - **Optional check history:** Signed-in users keep a check history to revisit earlier results and track how scores move. **Strengths:** Completely free with no paywall on the detailed sentence-level result; Shows probability and the sentences behind it instead of a single opaque score; Handles up to 10,000 words per check with unlimited runs; No sign-up needed, and a free account optionally saves history **Limitations:** Like any detector it produces occasional false positives, especially on formal or heavily edited text; Detection is deliberately framed as probability, so you still have to make the final judgement; Language coverage for detection is listed as English, Spanish and Portuguese [Profile (Markdown)](https://openaitools.app/tool/clever-ai-detector.md) ## Side Reader Side Reader exists to remove the friction of working with documents and AI chatbots at the same time. Normally you either paste chunks of a PDF into a chat window or juggle two tabs and lose your place. Side Reader is a Chrome extension that renders the PDF in the sidebar of ChatGPT, Claude or DeepSeek, so the document and the conversation sit side by side. Once a PDF is open you use built-in action buttons to summarize, translate or explain content, and you can customize those button prompts so the AI answers in your preferred format. For content that cannot be selected — charts, infographics, scanned images — a screenshot question lets you ask about a region of the page directly. The reader itself supports zoom, page navigation and width adjustment, so it behaves like a normal PDF viewer rather than a stripped-down preview. Privacy is handled simply: PDFs are stored locally in your browser and Side Reader does not keep your files. Because the AI work happens inside the ChatGPT, Claude or DeepSeek session you are already using, Side Reader adds document handling rather than a separate subscription to yet another model. **Pricing & Plans:** Freemium. The core Chrome extension is available to install, with a paid upgrade for extended usage; check the extension listing for current limits. - **Read PDFs beside the chat:** PDFs render directly in the sidebar next to the chat, so your document and the AI conversation are visible at the same time. - **Summarize, translate and explain:** Summarize a whole document, translate it, or have passages explained in simpler terms using the AI you are already signed into. - **Custom action button prompts:** Built-in buttons cover the common actions, and you can edit their prompts to make the AI respond in the format and tone you need. - **Screenshot questions for non-selectable content:** Ask about charts, scans or regions that cannot be selected by taking a screenshot question instead. - **Local storage and a proper reader:** Files stay local in your browser and are not stored by Side Reader, and PDFs keep zoom, page navigation and width controls. **Strengths:** Keeps the PDF and the AI conversation visible in the same window; Works with ChatGPT, Claude and DeepSeek rather than locking you into one model; Local-only file storage — documents are not kept on Side Reader servers; Customizable action prompts for repeatable workflows **Limitations:** Requires an active ChatGPT, Claude or DeepSeek session to do the AI work; Chrome only — no Firefox, Safari or Edge-specific edition; Very new/small product, so the feature set is still evolving [Profile (Markdown)](https://openaitools.app/tool/side-reader.md) ## Frequently Asked Questions ### How do Clever AI Detector and Side Reader compare in monthly traffic? Clever AI Detector has 8,562,719 monthly visits, while Side Reader has 355. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Clever AI Detector has a month-over-month growth rate of +44.5%; Side Reader has -36.5%. ### How does pricing compare? Clever AI Detector: Free. 100% free — no ads, no paywall, up to 10,000 words per check with unlimited runs. Signing up is optional and only adds saved check history. Side Reader: Freemium. Freemium. The core Chrome extension is available to install, with a paid upgrade for extended usage; check the extension listing for current limits. ## 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 | AI content detection and a full writing toolkit in one place | [.md](https://openaitools.app/tool/zerogpt.md) | | 2 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | AI detection and writing verification built for schools and editors | [.md](https://openaitools.app/tool/gptzero-me.md) | | 3 | [SciSpace](https://openaitools.app/tool/scispace) | 4,464,111 | +8.6% | Freemium | AI research platform for reading, understanding and writing scientific papers | [.md](https://openaitools.app/tool/scispace.md) | | 4 | [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | +17.5% | Freemium | Detect, humanize and verify AI content in one place | [.md](https://openaitools.app/tool/undetectable-ai.md) | | 5 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | A free, AI-powered PDF editor for every device | [.md](https://openaitools.app/tool/pdfgear.md) | | 6 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | AI sidebar and browser agent for reading, writing and research | [.md](https://openaitools.app/tool/sider.md) | | 7 | [Immersive Translate](https://openaitools.app/tool/immersive-translate) | 2,392,414 | -9.4% | Freemium, Free Trial | Bilingual AI translation for websites, documents, video and images | [.md](https://openaitools.app/tool/immersive-translate.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 | [LightPDF](https://openaitools.app/tool/lightpdf-com) | 1,742,568 | -15.3% | Freemium | Free AI-powered PDF editor, converter and reader for every device | [.md](https://openaitools.app/tool/lightpdf-com.md) | | 10 | [Merlin AI](https://openaitools.app/tool/merlin-ai-plugins) | 1,382,634 | +13.1% | Freemium | One AI assistant that plugs ChatGPT, Claude and Gemini into every tab | [.md](https://openaitools.app/tool/merlin-ai-plugins.md) | --- Source: https://openaitools.app/compare/clever-ai-detector-vs-side-reader More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)