Copy.ai vs GLM 5.2: Which Is Better in 2026

Last week, I watched a marketing director spend three hours manually rewriting API documentation into customer-facing landing pages, email sequences, and social posts. Meanwhile, a developer on the same team spent an equal amount of time trying to debug a multi-file Python repository using a chatbot that kept forgetting the original function signatures after 20 minutes. Two different problems, both screaming for AI assistance—but requiring completel