Merlin AI vs HuggingChat: Which is Better in 2026?

• Multi-model access
• Chrome extension
• YouTube summaries
• Web page & PDF summarization
• Gmail integration
• +8 more

• Omni automatic model routing
• Manual model selection
• Conversational AI responses
• Open-source models
• Coding and writing help

Merlin AI (by Foyer Inc) is an all-in-one AI assistant, delivered as a Chrome extension, web app and mobile apps, that puts GPT, Claude, Gemini, Llama, Mistral and Perplexity behind a single subscription and lets you summarize pages, YouTube videos and PDFs, draft in Gmail, and generate images without switching tabs. It's aimed at individuals, freelancers and small teams who want casual-to-moderate access to multiple premium models without paying for each one separately. Its main differentiator is model aggregation in the browser: rather than committing to one provider, users switch between frontier models in-context and split the cost of many subscriptions into one.

HuggingChat is Hugging Face's free, browser-based chat app powered entirely by open-source AI models, positioned as an open alternative to ChatGPT. Its Omni feature automatically routes each request to the best-suited open model, or users can manually pick a specific model to chat with. It's aimed at developers, researchers, and everyday users who want to experiment with cutting-edge open models for tasks like drafting emails and writing code without paying for a proprietary service.