Updated · April 2026
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Open-source AI code assistant for VS Code and JetBrains. Features tab autocomplete, inline chat, and sidebar chat with support for any LLM provider. Gui mode provides a native editor-like interface. The most popular open-source alternative to Cursor, with deep customization through config files and custom context providers.
IDE Extension
Open source
VS Code, JetBrains
Key features
Tab autocompleteInline chatAny LLM providerCustom context providersVS Code + JetBrainsOpen source
Best for
Best for developers who want an open-source, customizable AI assistant that works in their existing editor
Plans
Free
BYO API key - any provider - full features
$0
Plus
Managed API access - higher limits - coming soon
$15/mo
Open source favorite
The most popular open-source AI coding assistant. Highly customizable with any LLM provider.
Data sourced from official sites and developer communities. Features and pricing may vary - check official sites for the latest.