
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
PixieBrix records 32,837 monthly visits with -18% month-over-month growth and Freemium, Free Trial, Paid, Contact for Pricing pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

Protect every human and AI browser action — without a new browser
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | pixiebrix.com | sider.ai |
| Pricing Model | Freemium, Free Trial, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 32.84K (32,837) | 2.64M (2,644,740) |
| MoM Traffic Delta | -7.22K (-18%) | -314.2K (-10.6%) |
| Primary Market & Share | 🇺🇸 United States (21.6%) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 13.36K | 1.7M |
| User Rating | 4.1 | 4.5 |
| Supported Platforms | Website | Browser Extension |

Protect every human and AI browser action — without a new browser
PixieBrix deploys as a managed extension to monitor human and AI actions in any web app — including third-party sites — with full browser context that network controls miss.
Configure group policies in minutes to monitor, warn, soft-block or block actions, with built-in contact-centre and anti-fraud controls plus AI-code and low-code custom controls.
Cover refund and discount integrity, shipping and loyalty fraud, payment-card masking, and flag snooping, bulk exports and after-hours activity.
Every browser action is logged with on-screen context, backed by user risk scoring and an MCP investigation server for correlating data sets.

Your AI agent for the browser: chat, automate and create from one sidebar
Ask questions and query any page with leading models such as GPT, Claude, Gemini, Grok, DeepSeek and GLM, and switch between them in one place.
Summarize long articles, explain hard concepts, and translate web pages, PDFs, images and videos without leaving the tab you are reading.
Sider Hand runs multi-step research, price comparison, form filling and inbox triage across real websites, using your existing logged-in sessions.
Generate images and video, build slides and documents, and work with ChatPDF, read-aloud, data analysis and an AI writer inside the same sidebar.

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

SpecialistCross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
SpecialistCross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.

One app to chat with GPT, Claude, Gemini and hundreds of other AI models

All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile

Enterprise AI grounded in your company's own knowledge
AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One-click AI assistant for browsing, writing and research
One-click AI assistant for browsing, writing and research

A prompt library and management layer for ChatGPT and other AI models
A prompt library and management layer for ChatGPT and other AI models
One privacy-first AI client for GPT, Claude, Gemini and more
One privacy-first AI client for GPT, Claude, Gemini and more