Addi bridges GitHub Copilot with your preferred AI providers. Instead of being locked into a single vendor's models, you can connect Copilot to OpenAI-compatible APIs, Anthropic Claude, Google Gemini, or any custom LLM endpoint — giving you full control over your AI stack while keeping Copilot's interface and workflow.
- Multi-Provider Support — Connect OpenAI, Anthropic, Google, DeepSeek, Ollama, or any OpenAI-compatible API
- Full Copilot Integration — Models appear directly in Copilot's model picker
- Streaming Responses — Real-time token-by-token output
- Tool Calling — Use Copilot tools (code search, terminal, file editing) with your models
- Reasoning / Thinking — View the model's reasoning process for supported models
- Vision — Send images to models that support multimodal input
- Speed Monitoring — Track real-time performance metrics per model
- Import / Export — Backup, migrate, or share configurations as JSON
- Install the extension from the VS Code Marketplace
- Open the Addi sidebar in the Activity Bar
- Add a Provider — click the
+button, enter your API endpoint and key - Add a Model — right-click the provider, fill in the model ID and capabilities
- Open Copilot Chat — select your model from the model picker and start chatting
For detailed setup instructions, see the User Guide.
| Provider | Type ID | Examples |
|---|---|---|
| OpenAI-compatible | openai-completions |
OpenAI, DeepSeek, local Ollama, etc. |
| OpenAI Responses | openai-responses |
OpenAI (native tool support) |
| Anthropic | anthropic-messages |
Claude Sonnet, Claude Opus |
google-generateContent |
Gemini Pro, Gemini Flash |
| Document | Description |
|---|---|
| User Guide | Installation, configuration, usage, and troubleshooting |
| Changelog | Version history and release notes |
| Architecture Spec | Layered architecture, data flow, core design constraints |
| Coding Standards | Type safety, logging, error handling, naming conventions |
| AI SDK Reference | AI SDK v6 API types and mapping |
| VS Code API Reference | VS Code Copilot API and Proposed API reference |
Issues and pull requests are welcome at github.com/deepwn/addi.