GLM-5.3 flash offers GPT-5.6 level performance at 15x lower cost

haider1 · x · 2026-08-28

Evaluation reveals that while GLM-5.3 flash is not a frontier model, its price-to-performance ratio is exceptional. It matches GPT-5.6 sol in agentic tasks but is 15x cheaper according to Artificial Analysis tests. Notably, it also boasts the lowest hallucination rate among frontier models.

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