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Hacker NewsPublished: Jun 22, 2026, 10:00 JST1 min read

China's Z.ai open-sources coding model as US bans Anthropic rival

China's Z.ai open-sources coding model as US bans Anthropic rival

Key takeaway

  • Z.ai released GLM-5.2, a large open-source coding model that outperforms GPT-5.5 at one-sixth the API cost, on the same day the US restricted access to Anthropic's Fable 5.

  • The model's global availability and unrestricted license offer developers outside the US a powerful alternative to proprietary US AI services.

3 Key Points

  1. What happened

    Z.ai released GLM-5.2, a 744-billion-parameter open-weights model under MIT license, on the same day the US banned Anthropic's Fable 5 for foreign users. The model beats GPT-5.5 on coding benchmarks at one-sixth the API cost and is freely self-hostable with no regional restrictions.

  2. Why it matters

    The timing reshapes the infrastructure calculus for developers building outside the US. Developers now have access to a high-performing, unrestricted alternative that costs significantly less than proprietary US options, potentially reducing dependence on US-based AI services.

  3. What to watch

    GLM-5.2 is available immediately under MIT license, making it freely usable and self-hostable anywhere without regional blocks or licensing restrictions.

Ask the AI about this article →

FAQ

What is the license and cost of GLM-5.2?
GLM-5.2 is released under MIT license, meaning it is freely available and self-hostable. The API costs one-sixth that of GPT-5.5.
Are there regional restrictions on GLM-5.2?
No. GLM-5.2 has no regional restrictions and can be used freely worldwide, unlike Anthropic's Fable 5, which was banned for foreign users by the US.
How does GLM-5.2 perform compared to GPT-5.5?
GLM-5.2 beats GPT-5.5 on coding benchmarks.

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