Knowledge Atlas Technology (HKG:2513), also known as Z.ai, unveiled GLM-5.3-Flash, its first natively multimodal model in the GLM-5 series, with 320 billion total parameters and 18 billion active parameters.
The model outperforms GLM-5.2 across benchmarks and real-world workloads at one-tenth the price, while approaching Claude Opus 4.8 on coding and agentic benchmarks, according to the company.
All of the traffic was served on Chinese AI chips.