ChatGPT vs GLM 5.2: Which Is Better in 2026

Last month, I spent three hours debugging a Python script that processes large CSV files. I pasted the 2,000-line codebase into ChatGPT, and it confidently suggested a fix that crashed on execution. Frustrated, I threw the same code at GLM 5.2 on Z.ai. It rewrote the core loop using generators, cutting memory usage by 80% and actually running without throwing an exception. That single moment forced me to rethink my default workflow.

If you're tryin