Phantom — AI Coding Assistant for VS Code
Your own Cursor-like experience inside VS Code. Chat with AI, get inline completions, and let an agent edit your code — powered by any LLM provider.
Features
- 💬 Chat Sidebar — Ask questions, get explanations, generate code. Streamed responses with full markdown rendering.
- 🤖 Agent Mode — Let Phantom read files, write code, run terminal commands, and execute multi-step tasks autonomously.
- ⚡ Inline Completions — Tab-to-accept ghost text suggestions as you type.
- ✏️ Cmd+K Code Editing — Select code, press
Cmd+K, describe what to change, and Phantom rewrites it.
- 📂 @ Mentions — Reference files with
@filename in chat for targeted context.
- 🔍 RAG Indexing — Rebuild a local embedding index of your workspace for smarter retrieval.
- 🔌 MCP Support — Connect to external tools via Model Context Protocol servers.
- ✨ Prompt Enhancer — One-click button to improve your prompt before sending.
Supported Providers
| Provider |
Models |
| Groq |
Llama 3.3 70B, Llama 3.1 8B, Mixtral, Gemma 2 |
| OpenAI |
GPT-4o, GPT-4o Mini, GPT-4 Turbo, GPT-3.5 |
| Anthropic |
Claude Sonnet 4, Claude Haiku, Claude Opus |
| OpenRouter |
200+ models — GPT-4o, Claude, Llama, Gemini, DeepSeek, etc. |
| Custom |
Any OpenAI-compatible endpoint (Ollama, LM Studio, Together, etc.) |
Getting Started
- Install the extension from the VS Code Marketplace
- Open the command palette (
Cmd+Shift+P) and run Phantom: Settings
- Select your provider, paste your API key, and choose a model
- Open the Phantom sidebar to start chatting
Commands
| Command |
Shortcut |
Description |
| Phantom: Open Chat |
— |
Focus the chat sidebar |
| Phantom: Edit Code with AI |
Cmd+K |
Edit selected code with a natural language instruction |
| Phantom: Explain Selected Code |
— |
Send selected code to chat for explanation |
| Phantom: Settings |
— |
Open the settings panel |
| Phantom: Rebuild RAG Index |
— |
Re-index your workspace for retrieval |
Configuration
All settings are available under phantom.* in VS Code settings or via the Phantom: Settings panel.
License
MIT
| |
