# Workers AI - Z.ai GLM-5.3 Flash now available on Workers AI

Publisher-attributed story with a reviewed brief or permitted publisher paragraph. The original publisher is responsible for the linked reporting.

- Publisher: Cloudflare Developers
- Category: AI
- Original publication time: 2026-08-26T00:00:00Z
- First observed by NexusTechWire: 2026-10-01T15:54:34Z
- Original source: https://developers.cloudflare.com/changelog/post/2026-08-26-glm-5.3-flash-workers-ai/
- NexusTechWire record: https://nexustechwire.com/news/news-a72baa28001a19196111

## From the publisher

@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.

Source license: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Publisher excerpt shortened and converted to plain text. Original source license applies.

Read the full original: [Cloudflare Developers](https://developers.cloudflare.com/changelog/post/2026-08-26-glm-5.3-flash-workers-ai/)

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