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Mark Zuckerberg returns to X after 3 years to unveil Muse Spark 1.1 AI model

Zuckerberg's first activity on the platform in over three years signaled Meta's latest push to compete directly with OpenAI and Anthropic in the rapidly expanding market for enterprise AI models.

2 min read10 Jul 2026

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Mark Zuckerberg returns to X after 3 years to unveil Muse Spark 1.1 AI model