Sider: Offers a similar browser sidebar experience with multi-model support, but features cleaner tab integration and smoother reading tools. Merlin AI records 1,382,634 monthly visits with +13.1% month-over-month growth and Freemium pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
AI sidebar and browser agent for reading, writing and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | getmerlin.in | sider.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 1.38M (1,382,634) | 2.64M (2,644,740) |
| MoM Traffic Delta | +159.85K (+13.1%) | -314.2K (-10.6%) |
| Primary Market & Share | 🇺🇸 United States (15%) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 695.32K | 1.7M |
| User Rating | 4.3 | 4.5 |
| Supported Platforms | Browser Extension | Website |
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
Switch between GPT, Claude, Gemini, DeepSeek, Mistral and Llama class models from a single interface instead of juggling separate subscriptions.
Summarize articles, YouTube videos, PDFs and documents in place, then ask follow-up questions grounded in that content.
Draft and reply to emails in Gmail, compose posts and comments for X and LinkedIn, and repurpose web pages or videos into blogs and articles.
Generate images from prompts using more than 20 image models and multiple aspect ratios for web and social output.
AI sidebar and browser agent for reading, writing and research
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 long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
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.
SpecialistOffers massive context windows and Google Workspace integration, but functions as a standalone web app rather than an inline sidebar.
SpecialistOffers massive context windows and Google Workspace integration, but functions as a standalone web app rather than an inline sidebar.
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.
SpecialistDelivers superior citation-backed web research and real-time search, but lacks Merlin's multi-purpose browser writing tools and sidebar utilities.
SpecialistDelivers superior citation-backed web research and real-time search, but lacks Merlin's multi-purpose browser writing tools and sidebar utilities.
Aggregates diverse frontier models into one conversational interface, but operates primarily as a web/app client rather than a native extension.
Aggregates diverse frontier models into one conversational interface, but operates primarily as a web/app client rather than a native extension.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
SpecialistIntegrates AI directly into an independent browser environment, whereas Merlin runs as an extension across existing browsers.
SpecialistIntegrates AI directly into an independent browser environment, whereas Merlin runs as an extension across existing browsers.
Delivers a cross-platform AI chat client with local file Q&A, but requires desktop installation rather than browser extension access.
Delivers a cross-platform AI chat client with local file Q&A, but requires desktop installation rather than browser extension access.
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
Focuses on side-by-side multi-model comparison in a sidebar, but lacks Merlin's deeper document and video summarization workflows.
Focuses on side-by-side multi-model comparison in a sidebar, but lacks Merlin's deeper document and video summarization workflows.
SpecialistSpecializes in predictive autocomplete and writing assistance, but provides less comprehensive general chat and video summarization features.
SpecialistSpecializes in predictive autocomplete and writing assistance, but provides less comprehensive general chat and video summarization features.
