Cohere vs GLM 5.2: Which Is Better in 2026

Last month, I spent three days trying to get a production RAG pipeline to stop hallucinating product specs. I was using a popular general-purpose LLM, and it kept confidently inventing SKU numbers. Out of sheer frustration, I spun up test environments for two very different contenders: Cohere and Zhipu AI's GLM 5.2.

One is the enterprise darling built specifically for search and retrieval. The other is a 1-million-token powerhouse that recently sta