Z.AI: GLM 4.5

Z.AI's GLM 4.5, a flagship foundation model designed for agent-based applications, demonstrates exceptional reliability, achieving a perfect 100th percentile in providing usable responses with minimal technical failures. However, its performance is characterized by longer response times, ranking in the 8th percentile for speed across benchmarks, and it is positioned at premium pricing levels, falling into the 20th percentile for cost competitiveness. In terms of benchmark performance, GLM 4.5 excels in General Knowledge, achieving 100% accuracy, making it the most accurate model at its price point and among models of comparable speed. It also shows strong capabilities in Instruction Following and Reasoning, with accuracies of 72.7% (89th percentile) and 82.0% (80th percentile) respectively, aligning with its purpose for complex reasoning and tool use. While its Ethics accuracy is moderate at 99.0% (50th percentile), its Email Classification accuracy is lower at 93.0% (25th percentile). The model's "thinking mode" for complex reasoning likely contributes to its higher accuracy in these areas, but also to its extended durations across all tests, particularly in Reasoning (3,708,952ms). Its primary strengths lie in its robust reasoning and knowledge capabilities, coupled with unparalleled reliability, though these come at the expense of speed and cost.