Z.ai GLM-5.3 Flash now available on Workers AI
The Z.ai GLM-5.3 Flash multimodal model is now available on Workers AI, offering improved performance over GLM-5.2 at lower cost with support for text and image inputs. It is accessible via the Workers AI binding, REST API, OpenAI-compatible endpoint, and AI Gateway.
@cf/zai-org/glm-5.3-flash is now available on Workers AI. It is the first natively multimodal model in the GLM-5 series, built on a Mixture-of-Experts architecture with 320B total parameters and 18B active per token.
GLM-5.3 Flash is the first GLM-family model on Workers AI to support multimodal inputs. It outperforms GLM-5.2 across benchmarks and real-world workloads at a lower price, while approaching Claude Opus 4.8 on coding and agentic benchmarks.
GLM-5.3 Flash requires the Workers Paid plan or prepaid AI Gateway credits.
Use GLM-5.3 Flash through the Workers AI binding (env.AI.run()), the REST API, the OpenAI-compatible endpoint, or AI Gateway.
For more information, refer to the GLM-5.3 Flash model page and pricing.
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