GLM-5V-Turbo is a model I wanted to like due to its speed and API reliability, but it didn't perform well in our coding and reasoning testing. More recent open source models have made it obsolete. GLM 5.1 is so many light years ahead of it on everything except speed, that I'm not sure why it's still being served.

Comprehensive evaluation results at https://gertlabs.com/rankings

z.ai will use quantized models in off hours. Buyer beware