Z.AI

GLM-5.3

Aug 18, 2026ReasoningOpen weights

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Intelligence

34.3

#96 of 744Rank 96 of 744 measured models

Output speed

70.2 t/s

#251 of 403Rank 251 of 403 measured models

Price/1M

$2.15

#474 of 659Rank 474 of 659 measured models

Context window

1M

#84 of 1199Rank 84 of 1199 measured models

Cost per task

$0.852

#121 of 193Rank 121 of 193 measured models

GLM-5.3 (Low) scores 34.3 on the Artificial Analysis Intelligence Index, ranking 96th of 744 measured models. The closest models on this index are DeepSeek V4 Flash 0731 (Max) (34.3), Gemini 3.6 Flash (High) (34.0), and JT-4.1 Flash 236B A21B (33.9). At $2.15 per million tokens (3:1 input/output blended price), it is more expensive than DeepSeek V4 Flash 0731 (Max) ($0.66) and Gemini 3.6 Flash (High) ($1.50). With an output speed of 70.2 t/s, it is slower than DeepSeek V4 Flash 0731 (Max) (173 t/s) and Gemini 3.6 Flash (High) (175 t/s).