GLM-5.3-Flash Intelligence, Performance and Price Analysis

GLM-5.3-Flash, released in August 2026, ranks #1 in intelligence among 173 comparable models with a score of 57 on the Artificial Analysis Intelligence Index, significantly above the median of 18. The model is competitively priced at $0.15 per million input tokens and $0.50 per million output tokens, with an 83% cache discount, while supporting a 400k token context window for text-based tasks.