# Z.ai GLM-5.2: Open-Source Chinese Model Claims Competitive Performance

> Chinese startup Z.ai released GLM-5.2, an open-source mixture-of-experts model that it claims lands near Claude Opus 4.8 and GPT-5.5 on quality while charging roughly a tenth of the price. The model carries 744 billion total parameters but activates only 40 billion at a time, and it stretches its context window to a full million tokens, four times its predecessor. The pricing is the headline that will get people to actually try it: about $1.40 per million input tokens and $4.40 per million output tokens, undercutting the leading American labs by an order of magnitude. It ships fully open, with no regional restrictions, so anyone can download, modify, and redistribute it for any purpose. The timing is pointed. GLM-5.2 arrived just after the US relaxed export restrictions on frontier models, and it lands as a reminder that the open-weight frontier is increasingly being pushed from China. For teams priced out of closed US APIs, a credible, permissively licensed alternative changes the math on what they can build.

_Section: [Daily AI Updates](https://www.wortins.com/daily-ai) · Source: Euronews · Published Monday, August 3, 2026_

## Wortins' read

Chinese startup Z.ai released GLM-5.2, an open-source mixture-of-experts model that it claims lands near Claude Opus 4.8 and GPT-5.5 on quality while charging roughly a tenth of the price. The model carries 744 billion total parameters but activates only 40 billion at a time, and it stretches its context window to a full million tokens, four times its predecessor. The pricing is the headline that will get people to actually try it: about $1.40 per million input tokens and $4.40 per million output tokens, undercutting the leading American labs by an order of magnitude. It ships fully open, with no regional restrictions, so anyone can download, modify, and redistribute it for any purpose. The timing is pointed. GLM-5.2 arrived just after the US relaxed export restrictions on frontier models, and it lands as a reminder that the open-weight frontier is increasingly being pushed from China. For teams priced out of closed US APIs, a credible, permissively licensed alternative changes the math on what they can build.

## Source

[Read the full story at Euronews](https://www.euronews.com/next/2026/07/03/what-is-glm-52-the-new-chinese-ai-model-thats-rivalling-anthropic)

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