GLM 5.1 Now Leads Artificial Analysis Intelligence Index Over Closed Models
GLM 5.1 from Z.ai has taken the top position on the Artificial Analysis intelligence index, outperforming closed models from OpenAI, Anthropic, and Google across coding and reasoning tasks including SWE-Bench Pro. The Artificial Analysis intelligence index has itself been growing faster than Moore's Law as a measure of the overall ecosystem. GLM 5.1 is endorsed by multiple independent practitioners as their current daily-driver open model, with HuggingFace recommending it via its Inference Providers routing for agent use cases.
Why It Matters
An open-weights Chinese model leading the intelligence index closes the capability gap that had made closed Western models the default for production agent use. Weight access enables quantization, fine-tuning, and on-premises deployment—competitive features that API-only models cannot match.