Intern3 Chat

A modern, feature-rich AI chat application built by interns, for interns. It's the second-best chat app in the world, after T3 chat. It's fast, has lots of features, and is open-source.

🔗 Live demo → https://intern3.chat

What is Intern3 Chat?

Intern3 Chat is a comprehensive AI chat platform that brings together multiple AI providers, advanced tools, and a seamless user experience. Whether you're a developer, researcher, or just someone who loves AI, Intern3 Chat has everything you need.

Quick Start

Core features

• Multi-model support with Gemini, OpenAI, Claude, and more.
• BYOK API key system: Native Provider BYOK → OpenRouter BYOK → In-house credits.
• In-house credits for select models (no API key required)
• Custom AI prompt configuration
• Web Search integration with Brave Search and Firecrawl
• Image Generation using fal.ai models and GPT-Image-1
• HTML/Mermaid/React artifacts preview
• Native Voice input in input box using Groq
• HTTP/SSE MCP Support for Model Context Protocol
• Supermemory API integration for persistent memories
• File Attachments - Upload code, text files, PDFs, and images

Experience features

• Resumable streams for reliable message delivery
• Edit & Regenerate any message
• Copy messages with one click
• Thread management with sidebar navigation
• Folder organization for chat threads
• CMD+K search bar for quick chat navigation

Customization & UI

• Beautiful, modern interface with multiple theming options
• Normal/Wide chat view options
• Responsive design for all devices

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*Some models are available with in-house credits, so API keys aren't always required! But not all, so we don't go broke (looking at you, o3, claude-sonnet-4 and claude-opus-4's of the world...)