Z.ai prices GLM-5.3 API access at $1.40/1M input tokens and $4.40/1M output tokens, unchanged from GLM-5.2; Kimi K3 costs $3/1M input and $15/1M output tokens (Carl Franzen/VentureBeat)

Z.ai has announced pricing for its GLM-5.3 API access, maintaining the same rates as its predecessor, GLM-5.2. Users will be charged $1.40 per million input tokens and $4.40 per million output tokens. In comparison, Kimi K3's pricing is set at $3 per million input tokens and $15 per million output tokens. This follows GLM-5.3's recent debut, which showcased advanced cyber capabilities, including the reported discovery of a previously undetected vulnerability in Cursor.