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2026/9/19 00:46 (UTC+8) · New Model · Zhipu / ByteDance 🚀 glm-5-3-flash-260828 is live in the default / svip / CodexResponses groups This is Zhipu’s GLM-5.3-Flash served through BytePlus (ByteDance’s international cloud) as an official relay; 260828 is the BytePlus version snapshot. GLM-5.3-Flash is the first natively multimodal model in the GLM-5 series, taking text, image and video input and producing text, with deep thinking. Pricing matches glm-5.3-flash, launched on 9/8: $0.15 input / $0.50 output / $0.03 cache read per 1M tokens, and recharge bonuses apply as usual. GLM-5.3-Flash is now available under two model names; pick either:
  • glm-5.3-flash: official relay via Zhipu
  • glm-5-3-flash-260828: official relay via BytePlus
📖 Benchmarks, specs and code samples: GLM-5.3 and GLM-5.3-Flash Launch · GLM-5.3-Flash model details
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