GLM-5.3-Flash

GLM-5.3-Flash is an artificial intelligence model developed by Z AI and released on August 26, 2026. The model achieves an intelligence index of 57.5 and a coding index of 71.5. Performance metrics indicate an output speed of 41.75 tokens per second with a time to first token of 1.158 seconds. Benchmark results for the model include a GPQA score of 0.912, an HLE score of 0.399, a SciCode score of 0.461, and an LCR score of 0.78. Pricing for GLM-5.3-Flash is set at $0.15 per 1 million input tokens and $0.50 per 1 million output tokens, resulting in a blended rate of $0.24 per 1 million tokens.