CopilotKit records 403,148 monthly visits with +199.4% month-over-month growth and Freemium pricing. Merlin AI records 1,382,634 monthly visits with +13.1% growth and Freemium pricing.
Open-source frontend stack for building AI agents and copilots inside your own product
One-click AI assistant for browsing, writing and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | copilotkit.ai | getmerlin.in |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 403.15K (403,148) | 1.38M (1,382,634) |
| MoM Traffic Delta | +268.49K (+199.4%) | +159.85K (+13.1%) |
| Primary Market & Share | 🇺🇸 United States (18.9%) | 🇺🇸 United States (15%) |
| Direct Visits / mo | 179.26K | 695.32K |
| User Rating | 4.6 | 4.3 |
| Supported Platforms | Website | Website |
Open-source frontend stack for building AI agents and copilots inside your own product
Ship a working copilot UI in minutes with drop-in components for React, Angular, Vue, iOS, and Android, or go fully headless for total control over rendering.
A general-purpose bi-directional link between your app and any agent backend, with integrations for the OpenAI Agents SDK, Claude Agent SDK, LangChain, Google ADK, AWS Strands, Mastra, and many more.
Agents return real UI — charts, forms, tables, and approval prompts rendered with your own design system on the same screen the user is already working in.
Let agents read and write application state, call your frontend functions, and pause for human approval before sensitive actions are executed.
One-click AI assistant for browsing, writing and research
A Chrome extension that summarizes, searches and writes directly over the page you are on, without switching tabs.
Access to leading models from several vendors in one place, so you can pick the best fit for each task.
Build reusable knowledge bases from your own documents and code, then query them repeatedly for tailored answers.
Turn a prompt into flowcharts, mindmaps, charts and other diagram types for reports and presentations.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistOne app to chat with GPT, Claude, Gemini and hundreds of other AI models
SpecialistOne 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
AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research
SpecialistOne AI subscription for chat, images, audio, video and agents
SpecialistOne AI subscription for chat, images, audio, video and agents
Free / Open-sourceOne privacy-first AI client for GPT, Claude, Gemini and more
Free / Open-sourceOne privacy-first AI client for GPT, Claude, Gemini and more
One browser agent that combines every major AI model with web automation
SpecialistThe best frontend for AI.
Compare GPT, Claude, and Gemini answers side by side in one chat
Compare GPT, Claude, and Gemini answers side by side in one chat
SpecialistCombines conversational workflow drafting with visual flow builders, focusing on workflow automation rather than frontend copilot embedding.
SpecialistCombines conversational workflow drafting with visual flow builders, focusing on workflow automation rather than frontend copilot embedding.
SpecialistSummarize, bookmark and write with AI right in your browser
SpecialistSummarize, bookmark and write with AI right in your browser
