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meta just promised to open-source the AI model that actually rivals GPT and Claude

Muse Spark 1.2 isn't the laptop-sized model Meta gave away last week — it's the one built to fight Claude Opus 5 and GPT-5.6 head-on, and Zuckerberg just said it's going free too.

Lena Fischer · Aug 13 · 6 min

Meta AI branding on data center server infrastructure, representing the company's open-source AI model push

Meta just open-sourced a 30B AI model that beats Google and Alibaba's best — for free

Muse Glimmer runs on a single consumer GPU and, per Meta's own numbers, beats Gemma4-31B and Qwen3.6-27B at agentic and coding tasks — and Zuckerberg used the release to make his most pointed case yet for open AI over the API-gated kind.

Lena Fischer · Aug 10 · 7 min