GLM 5.2 Performance Benchmarks

GLM-5.2 (max), released in June 2026, ranks #4 in intelligence among open-weight models with a score of 53 on the Artificial Analysis Intelligence Index, but carries premium pricing at $1.40 per million input tokens and $4.40 per million output tokens. The model demonstrates strong performance with 136 tokens per second output speed and a 1M token context window, though it generates somewhat verbose responses compared to comparable models.