Z.ai's GLM-5.3-Flash Topped OpenRouter Blind Test on Chinese AI Chips

Z.ai tested GLM-5.3-Flash anonymously as 'ox-alpha' on OpenCode and OpenRouter before its August 26 reveal. It became the most popular model of the week. All traffic ran on Chinese AI chips, disclosed only after the fact. Worth flagging: developers chose the model on merit, not brand, with the infrastructure question answered afterward.