Chatbox: Delivers a cross-platform AI chat client with local file Q&A, but requires desktop installation rather than browser extension access. Chatbox records 567,170 monthly visits with -16.1% month-over-month growth and Freemium pricing. Merlin AI records 1,382,634 monthly visits with +13.1% growth and Freemium pricing.
One privacy-first AI client for GPT, Claude, Gemini and more
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chatboxai.app | getmerlin.in |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 567.17K (567,170) | 1.38M (1,382,634) |
| MoM Traffic Delta | -108.56K (-16.1%) | +159.85K (+13.1%) |
| Primary Market & Share | 🇨🇳 China (44.7%) | 🇺🇸 United States (15%) |
| Direct Visits / mo | 329.04K | 695.32K |
| User Rating | 4.6 | 4.3 |
| Supported Platforms | Website | Browser Extension |
One privacy-first AI client for GPT, Claude, Gemini and more
Switch between GPT, Claude, Gemini, Grok, DeepSeek and many other providers in one client by plugging in your own API credentials.
Upload PDFs, Office documents, images and code, then ask the app to summarise, explain or extract what you need.
Store documents locally so Chatbox can recall and answer from your own materials while your data stays on your machine.
Pull current results from the web and display answers with Markdown, Mermaid diagrams, LaTeX formulas and code previews.
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.
SpecialistProvides superior core reasoning and advanced coding agents, but lacks Merlin's seamless one-click browser tab integration and sidebar shortcuts.
SpecialistProvides superior core reasoning and advanced coding agents, but lacks Merlin's seamless one-click browser tab integration and sidebar shortcuts.
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.
SpecialistExcels at nuanced document analysis and writing, but operates as a dedicated web workspace rather than a browser extension.
SpecialistExcels at nuanced document analysis and writing, but operates as a dedicated web workspace rather than a browser extension.
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.
Provides comparable all-in-one browser assistance and multi-model chat, but includes more robust built-in painting and drawing suites.
Provides comparable all-in-one browser assistance and multi-model chat, but includes more robust built-in painting and drawing suites.
Offers a similar browser sidebar experience with multi-model support, but features cleaner tab integration and smoother reading tools.
Offers a similar browser sidebar experience with multi-model support, but features cleaner tab integration and smoother reading tools.
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.
Combines browser AI chat with advanced web automation and data extraction, though with a steeper learning curve.
Offers a more feature-rich browser interface with advanced prompts and team sharing, but requires its own paid license.
Offers a more feature-rich browser interface with advanced prompts and team sharing, but requires its own paid license.
Free / Open-sourceBrings a robust open-source multi-user platform supporting diverse AI providers, custom agents, and secure local authentication.
Free / Open-sourceBrings a robust open-source multi-user platform supporting diverse AI providers, custom agents, and secure local authentication.
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.
