NPC in the AI World
One-stop AI chat client — integrating leading top models, built-in AI notes, custom model settings

Leading AI vendors, one-click access
Built-in mainstream AI providers, also supports custom addition, all models are clear at a glance, switch anytime, manage freely
ChatGPT
OpenAI
Claude
Anthropic
Gemini
Multi-Model AI Chat
Switch between AI models in a single interface, compare answer quality, choose your best AI assistant.
- Streaming responses, watch AI think in real-time
- Image recognition & multi-modal interaction
- Message folding & code syntax highlighting
- Custom system prompts & model parameters


Freely Configure Your AI Model
Built-in major AI providers, also supports custom additions, all models are clear at a glance, switch anytime, manage at will.
- Built-in major providers like OpenAI, Claude, Gemini
- Custom add providers and API Key, connect to any compatible interface
- One-click enable/disable models, set default model
Fast, Smooth, Effortless
Every detail optimized so you can focus on your conversations
Lightning Fast
Opens instantly, responds in milliseconds, stays fast no matter how long your conversations get
Silky Smooth
Scrolling, typing, switching models — everything stays buttery smooth
Massive Chats
Browse tens of thousands of messages as smoothly as scrolling your feed
Battery Friendly
Uses half the memory of similar apps — longer battery life, quieter fans
Cross-Platform, Use Anywhere
Windows, macOS and Linux supported, lightweight install, ready instantly
FAQ
Yes, PandaNpc core features are completely free. You can use AI chat, notes, knowledge base and more for free. Advanced features like more AI models and larger storage can be unlocked with credits.
No. PandaNpc has a built-in AI proxy service, so you don't need to register or manage API Keys yourself. Of course, you can also add your own providers and API Keys.
Built-in support for the three major providers: OpenAI, Anthropic, and Google, including mainstream models like ChatGPT (GPT-5, GPT-5.2, GPT-5.2 Codex), Claude (Opus 4.6, Sonnet 4.5, Haiku 4.5), and Gemini (3 Pro, 3 Flash), as well as the option to customize and add other providers.
PandaNpc uses end-to-end encrypted transmission with local data storage. Built with a lightweight native framework, far more secure than traditional solutions. Your privacy is our top priority.