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Z.AI's GLM-5.3 uses the same base model as its predecessor, GLM-5.2, but the firm substantially scaled post-training. Photo: VCG
Z.AI Pushes AI Model With Coding Edge to Rival Anthropic, Open AI
Chinese AI startup is maximizing post-training efficiency to compete in the fierce global AI race as its annual recurring revenue hits $1 billion
TL;DRAI
Z.AI released GLM-5.3 with scaled post-training on same base as GLM-5.2, boosting coding and agent performance. Post-training-first approach competes with Anthropic/OpenAI by optimizing tuning over architecture—signals foundation model efficiency pivot.
107 words~1 min read
