GLM-5-3 (Flagship) vs DeepSeek V4.1 Flash

A direct, empirical evaluation of GLM-5-3 (Flagship) (Zhipu AI & THUDM) against DeepSeek V4.1 Flash (DeepSeek-AI).

GLM-5-3 (Flagship)

Developed by Zhipu AI & THUDM · 744B parameters

Complex algorithmic reasoning, multi-step code synthesis, and long-horizon tool execution.

DeepSeek V4.1 Flash

Developed by DeepSeek-AI · 240B parameters

Real-time production inference, high-concurrency coding agents, sub-220ms time-to-first-token, and cost-optimized long-context parsing.