Supermaven

Supermaven is a code completion tool built specifically for speed. Founded by the creator of Tabnine, it uses a custom architecture with a 300,000-token context window that processes faster than competitors. In head-to-head comparisons, suggestions appear before you finish typing — a genuinely different experience from tools with 300-500ms latency. Works as a VS Code extension and JetBrains plugin, with a free tier that includes full-quality completions.

Best for developers who find Copilot's lag frustrating or who want a pure, fast autocomplete experience without the overhead of a full AI agent framework. The 300k context window means it sees more of your codebase for better suggestions, not just the current file. Free tier gives you the full feature set with usage limits reasonable for individual developers.

Where it's intentionally limited: Supermaven is completions-only. No chat, no multi-file editing, no documentation lookup, no agent mode. Acquired by Cursor in late 2024, Supermaven's technology is being integrated into Cursor's completion engine — which may affect Supermaven's standalone future.