Ordinal

Which model is worth using

1 Oct 2026

Labs

Z.ai

Z.ai, formerly Zhipu, ships GLM. GLM-5.3 Flash is the cheap open model on the cost frontier. GLM-5.3 is the larger open flagship.

z.ai

GLM-5.3

Sep 2026 · Open weights · Z.ai's large open model. Near Qwen3.8 Max on the index, with a lower measured task cost.

GLM-5.3 Flash

Sep 2026 · Open weights · The cost-frontier open model. A serious score, a serious license, and a price that makes a routing layer obvious.