Sider AI Review 2026 - Features, Pricing & Deals
Sider AI is a browser extension that brings artificial intelligence capabilities directly into your daily online activities. It works across Chrome, Edge, Safari, and multiple operating systems.
The tool combines several AI models—ChatGPT, GPT-4, Claude 3.5, and Gemini—to help with common tasks. You can use it to summarize web pages, improve your writing, analyze documents, or create images. The built-in chat feature lets you talk with different AI models at once.
Sider AI handles everything from basic writing assistance to complex data analysis. It translates across multiple languages, checks grammar, and helps you understand code. For content creators, there's image generation and editing. The Deep Research Agent scans over 100 sources to generate cited reports.
Prices start at $8.30 monthly. The free version gives you 30 basic credits daily to try core features, while paid plans unlock advanced tools and higher usage limits.
Chat history can disappear after closing tabs. The sidebar gets cluttered with so many features packed in. The tool takes time to learn.
Who is Sider AI for?
Sider AI is for busy professionals and internet users who want AI help while browsing without switching between apps. The browser extension brings AI capabilities directly into your workflow.
- Content creators and writers who need summaries, grammar checking, and writing improvements across multiple languages
- Researchers and students who analyze web content and extract information from long texts—the Deep Research Agent scans 100+ sources for reports
- Marketing managers and social media managers who handle communications and need translation support
- Developers and technical users who want AI assistance with code understanding and data analysis
- Creative professionals who need image generation and editing without leaving their browser
- Analysts who benefit from talking to several AI models at once for different perspectives
- Anyone working with PDFs, images, audio, or YouTube videos who needs real-time AI assistance
Also useful for educators, translators, and anyone who spends significant time working online with content in multiple formats.
Online Reviews (Last 6 Months Summarised)
Sider AI has been picking up positive buzz on Product Hunt and Reddit. Users praise the free tier for being genuinely unlimited without daily caps that competitors impose. The Chrome extension gets points for a clean UI. The ability to chat with multiple AI models like GPT-4o, Claude 3.5, and Gemini in one place gets frequent mentions, as does the accurate PDF translation and document chatting. People find it useful for productivity tasks like writing, coding assistance, and research, with fast responses and solid multi-language support.
Chat history disappears after closing tabs or the browser, which frustrates users doing ongoing work. Occasional inaccuracies or hallucinations in AI responses, though this is common across AI tools. The sidebar feels cluttered with too many features crammed in. Power users want more customization options. Privacy concerns about data usage pop up in Reddit threads. Advanced models are locked behind the paywall, which some users find limiting even though the free tier is generous.
Features
- AI Chat and Group Chats: Access GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, and LLaMA in one place, upload and analyze files directly in chat, and compare responses side by side.
- Content Summarization: Generate summaries of webpages, emails, documents, and YouTube videos without reading the full text.
- Writing Assistance: Get AI-powered suggestions, grammar checking, and translation for emails, articles, and messages across text, images, and PDFs.
- Deep Research Agent: Scan over 100 sources to generate cited reports for research tasks.
- Image Creation and Editing: Generate and modify images using the Painter feature.
- Advanced Data Analysis: Analyze data, convert images with AI Text Extraction, edit code files, and get coding assistance.
- Specialized AI Sidekicks: Access over 100 specialized AI agents for specific tasks, plus create custom agents for your workflow.
- Cross-Platform Compatibility: Available on Chrome, Edge, Safari, iOS, Android, Mac, and Windows, with a sidebar interface for real-time AI assistance without leaving the page.
Pricing
- Free version includes 30 Basic Credits per day, plus limited access to YouTube Summary (5 total), AI Text Extraction (10 total), Painter (10 total), and PDF/File/Link Chat (10 total, up to 200 pages per PDF).
- Basic Plan at $8.30 per month provides 3,600 Basic Credits per month for models like GPT-4o mini, Claude 3 Haiku, and Gemini 1.5 Flash, plus 100 Advanced Credits per month for GPT-4o, Claude 3.5 Sonnet, and Gemini 1.5 Pro, with full access to Data Analysis, YouTube Summary, AI Text Extraction, Painter, File/Link Chat, AI Read Aloud, smart web access, and extensions and apps support.
- Pro Plan at $16.60 per month delivers 12,000 Basic Credits per month and 300 Advanced Credits per month for enhanced capabilities, with all features from the Basic Plan included.
- Unlimited Plan at $25 per month offers unlimited Basic Credits and unlimited Advanced Credits (with at least 1,000 GPT-4o/Claude 3.5/Gemini 1.5 Pro credits guaranteed each month), plus comprehensive access to all features without limitations.
Frequently Asked Questions
Sider AI lets you chat with multiple AI models at once in a group chat format. You can compare answers from ChatGPT, Claude 3.5, Gemini, and LLaMA in the same conversation to see different perspectives. It works right in your browser as you surf the web, so you can summarize articles, translate content, or get help with writing without switching tabs. The Deep Research Agent scans over 100 sources to generate cited reports, and you can interact with PDFs, images, audio, and YouTube videos directly. Sider offers over 100 specialized AI sidekicks plus custom agent creation for specific tasks.
Can I use Sider AI without paying?Yes. Sider AI offers a free plan with 30 Basic Credits per day, which users say is genuinely unlimited compared to competitors with stricter daily caps. You'll also get limited access to YouTube Summary, AI Text Extraction, Painter, and PDF/File/Link Chat to test out the features. The free version works if you need occasional help with writing or quick web page summaries. For advanced features like unlimited access to GPT-4o, Claude 3.5 Sonnet, and Gemini 1.5 Pro, you'll need one of their paid plans starting at $8.30 per month.
How do I install Sider AI?Visit the official Sider website or go directly to your browser's extension store (Chrome Web Store, Microsoft Edge Add-ons, etc.). Search for "Sider AI" and click the "Add to Browser" or "Install" button. After installation, you'll see the Sider icon in your browser toolbar. Click it to set up your account, and you're ready to go. Sider also offers mobile apps for iOS and Android that you can download from their respective app stores, plus desktop versions for Mac and Windows.
Does Sider AI work offline?No. Sider AI needs an internet connection to work. Since it connects to cloud-based AI models like GPT-4o, Claude 3.5, and Gemini, you must be online to use its features. The browser extension and apps require internet access to send your queries to these AI services and receive responses. There isn't an offline mode, so keep this in mind if you plan to use it while traveling or in areas with spotty internet.
How secure is my data with Sider AI?Sider AI follows standard privacy practices for browser extensions, with encrypted data transmission during use. However, some users on Reddit have raised privacy concerns about how data is processed on servers. Your chats are encrypted during transmission, but any content you share with AI models gets processed on their servers. If you're handling sensitive information, you should review Sider's privacy policy and terms of service carefully. For work-related or confidential data, consider checking if they offer any special enterprise security features or contact their support team about data handling practices.
