TL;DR
Kilo Code is an open-source AI coding agent that works in VS Code, JetBrains, and CLI, offering 500+ models that can be switched mid-task with no API keys required.
Key features
Multi-IDE support: Same agent experience in VS Code, JetBrains, and CLI
500+ models: Supports GPT-5.5, Claude Opus 4.7, Claude Sonnet 4.6, Gemini 3.1 Pro Preview, and more
Zero markup: Pay only the model provider's rate, no additional fees
No API key required: Create an account and start using immediately
Cloud Agent: Run from the web without a local machine
When to use it
When you need AI assistance for writing, modifying, or refactoring code
When you want a consistent AI coding assistant across multiple IDEs and CLI
When you want to compare and switch between different AI models during a task