# BrainyAI vs Sider

BrainyAI records 0 monthly visits with — month-over-month growth and Free pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

| Metric | [BrainyAI](https://openaitools.app/tool/brainyai) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/brainyai/jmcllpdchgacpnpgechgncndkfdogdah | https://sider.ai |
| Categories | AI Assistant, AI Chatbot, AI Productivity Tools, AI Search Engine | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 | 2,644,740 |
| MoM Growth Rate | — | -10.6% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 1,699,535 |
| Review Score | 4.1 | 4.5 |
| Saved Count | 2 | 31 |
| Supported Platforms | Browser Extension | Website |

## BrainyAI

BrainyAI is a Chrome browser extension that puts an AI sidebar next to whatever you are reading. Its goal is to cut out page-hopping: instead of opening tabs for ChatGPT, a search engine and a translation tool, you run everything from one sidebar. The extension describes itself as a 'work assistant' covering search, chat, translation, writing and summarization in a single place.

Its headline capability is multi-engine smart search, which lets you query several AI-powered search engines and compare their answers so you can pick the most useful result. Customizable shortcuts take that further: highlight text on a page and BrainyAI can explain it, translate it or rephrase it in one click, which is handy for reading in a second language or simplifying dense material. Interactive AI conversations round out the sidebar with real-time Q&A and idea generation.

The publisher keeps the extension updated (the listing shows version 0.1.6, updated February 2025) and states that it follows recommended Chrome extension practices, holds a good publisher record and does not collect or sell your data for unrelated purposes. BrainyAI is listed as free on the Chrome Web Store and reported a rating of about 4.7 out of 5 from around 31 ratings at the time of our review, with roughly 1,000 users.

**Pricing & Plans:** BrainyAI is listed as free on the Chrome Web Store. Any costs would come from third-party AI accounts or API keys you choose to connect, since the extension itself carries no listed price.

- **Multi-engine smart search:** Query several AI-powered search engines at once so you can compare results and pick the most relevant answers for your task.
- **Customizable text shortcuts:** Select text on any web page and get one-click explanations, translations and rephrasing without leaving the tab.
- **Interactive AI conversations:** Talk to BrainyAI in real time for instant answers, drafting help and brainstorming from the browser sidebar.
- **Summarize and read:** Summarize and read pages more efficiently so long articles and research become quick, digestible reads.
- **Privacy controls:** A transparent privacy policy with opt-in anonymous data collection gives you control over your information.

**Strengths:** Free Chrome extension with a single AI sidebar for chat, search, translation and summarization; Multi-engine smart search lets you compare answers across AI search engines; One-click explain, translate and rephrase for selected text; Respects privacy: opt-in anonymous data collection and no unrelated data selling

**Limitations:** It is a browser extension rather than a standalone app, so it lives inside Chrome; The listing shows a relatively modest user base (about 1,000 users) and its last update was February 2025; Some capabilities depend on signing in and connecting third-party AI accounts or API keys; Advanced usage beyond the sidebar shortcuts may require paid accounts on the underlying AI services

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

## Sider

Sider's premise is that you should not have to leave the page you are reading to use an AI assistant. Its sidebar overlays the browser, detects the content in view, and responds with chat, summaries, translations or explanations using frontier models from multiple providers. The result is a lightweight research and reading workflow: highlight a paragraph, ask for a simpler explanation, translate a PDF and keep the original in sight.

Recent versions push Sider beyond chat. Sider Hand is a browser agent that works across real websites and uses your logged-in sessions to carry out multi-step jobs such as comparing prices while shopping, filling forms, doing cross-site research or triaging a Gmail inbox. Sider Code goes the other way, letting you instruct changes to a website's appearance or behaviour in plain language and preserving the customisation for next time. A Create module generates images, videos, slides and documents from the same panel.

Pricing moves from a limited free tier to credit-based paid plans aimed at heavier users. Lower plans suit occasional chat, summarisation and translation, while higher tiers add a dedicated cloud computer that keeps the browser agent running around the clock and a larger monthly credit allowance. Sider ships as browser extensions for Chrome and Edge plus desktop and mobile apps for macOS, Windows, iOS and Android, and is used by a very large installed base.

**Pricing & Plans:** Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans.

- **AI sidebar on any page:** A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
- **Summarise and chat with documents:** Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
- **Translation and read-aloud:** Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
- **Sider Hand browser agent:** Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
- **Sider Code page customisation:** Describe a change in plain words and have Sider restyle or simplify any website, remembering the modification for future visits.

**Strengths:** Works inside the browser you already use, with no context switching; Access to multiple frontier models from one subscription; Strong reading toolkit: PDF chat, YouTube summaries, translation and read-aloud; Increasingly capable agent features for multi-step browser tasks

**Limitations:** Useful credits run out quickly on the free and lower tiers; Model availability and quota rules change over time, so expectations must be checked per plan; Some agent and code features depend on a cloud machine and heavier plans

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

## Frequently Asked Questions

### How do BrainyAI and Sider compare in monthly traffic?

BrainyAI has 0 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

BrainyAI has a month-over-month growth rate of —; Sider has -10.6%.

### How does pricing compare?

BrainyAI: Free. BrainyAI is listed as free on the Chrome Web Store. Any costs would come from third-party AI accounts or API keys you choose to connect, since the extension itself carries no listed price. Sider: Freemium. Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) |
| 3 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools. | [.md](https://openaitools.app/tool/monica-ai.md) |
| 4 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features. | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 5 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider. | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 6 | [ChatHub](https://openaitools.app/tool/chathub) | 322,618 | -13.9% | Freemium | Compare GPT, Claude, and Gemini answers side by side in one chat | [.md](https://openaitools.app/tool/chathub.md) |
| 7 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Summarize YouTube, Google, and any page with AI — free in your browser | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) |
| 8 | [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | -6.5% | Freemium | Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider. | [.md](https://openaitools.app/tool/kome-ai.md) |
| 9 | [Voilà — AI Assistant, Chat and Writer](https://openaitools.app/tool/voil-chatgpt-browser-assistant) | 152,170 | -4.8% | Freemium | Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools. | [.md](https://openaitools.app/tool/voil-chatgpt-browser-assistant.md) |
| 10 | [SigmaOS Airis (Alpha)](https://openaitools.app/tool/sigmaos-airis-alpha) | 90,910 | +9.2% | Freemium | A Mac browser built for focus, with an AI companion called Airis | [.md](https://openaitools.app/tool/sigmaos-airis-alpha.md) |

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Source: https://openaitools.app/compare/brainyai-vs-sider

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