# Z.ai makes GLM-5.3 coding model available through its services

_Published Saturday, August 15, 2026 at 10:17 PM EDT · AI · Latest · Tier 2 — Notable_

![open source artificial intelligence AI china LLMs glm — Primary](https://cdn.decrypt.co/resize/1024/height/512/wp-content/uploads/2025/05/ai-decrypt-style-14-gID_7.png)

Z.ai released GLM-5.3 through its GLM Coding Plan subscription and ZCode, while saying API access and downloadable model weights will follow a safety review.

The company describes the 743-billion-parameter model as an update built by scaling post-training on the GLM-5.2 base. It reported a 34.5% result on its in-house Code Bench at Max effort, compared with 23.4% for GLM-5.2, while using roughly 75,000 output tokens per task versus 96,000.

The article reported that GLM-5.3 remains behind some closed models on named coding benchmarks.

## Sources

- [Decrypt](https://decrypt.co/375684/china-z-ai-glm-5-3-top-open-weight-coding-model)

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Canonical: https://techandbusiness.org/newswire/jnNY0GloaxIVy89pery_p3
Published: 2026-08-16T02:17:46.895Z
Story chronology: 2026-08-15T00:01:13.000Z
Retrieved: 2026-09-30T09:11:46.165Z
Publisher: Tech & Business (techandbusiness.org)