How we built the world’s fastest API for GLM-5.2

GLM-5.2, developed by Z.ai, is a highly efficient and cost-effective large language model designed for complex tasks such as coding, offering significant performance improvements over its predecessors. The model's success is attributed to a range of optimizations, including the use of NVIDIA Blackwell GPUs with NVFP4 quantization, which enhances both time to first token (TTFT) and tokens per second (TPS). By implementing disaggregated inference with NVIDIA Dynamo, GLM-5.2 separates prefill and decode processes, reducing resource competition and improving throughput. Additionally, the model benefits from Multi-Token Prediction (MTP) layers that allow for speculation, enhancing token generation efficiency without compromising performance. These advancements enable GLM-5.2 to maintain superior operational performance in production environments, while also providing considerable cost savings compared to similar models like GPT 5.5 and Opus 4.8.