Aider
Paul Gauthier
Aider is the original open-source AI pair programming CLI. It builds a tree-sitter repomap for deep codebase context across 100+ languages, applies coordinated multi-file edits, and auto-commits each change with meaningful git messages. BYOK — works with Claude, GPT, Gemini, DeepSeek, local Ollama models, and more. Best for disciplined, Git-native coding workflows.
Free and open source. You pay only for the LLM API tokens you use (BYOK).
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