Code-Capable LLMs in 2025: Choosing the Right Model for Code Writing, Refactoring, and Deployment

7 Code-Capable LLMs in 2025: Who Actually Writes, Refactors, and Ships for You? Short answer: No single model wins every metric. Pick the one whose deployment mode, governance, and price you can live with, then tune context length and temperature—that’s where the real productivity delta lives. What This Article Answers (Top Questions From Engineers) Which models reliably fix entire GitHub issues end-to-end (SWE-bench style) today? When should I stay on a closed API, and when does open-weights make more sense? How do I mix-and-match one closed + one open model without blowing the budget or the GPU cluster? 1. 2025 …