
Does Mark Zuckerberg really believe AI is ‘for everyone’?
On 2026-08-14, Meta released Glimmer, an open-weight AI model that anyone can download and run on their own hardware. This contrasts with Meta's more powerful AI model, Muse Spark, which remains locked behind the company's own APIs. Mark Zuckerberg accompanied the release with a letter arguing that AI should be 'for everyone' rather than controlled by a handful of labs.
Business relevance: By offering Glimmer as an open-weight model, Meta may foster broader innovation and adoption of AI technologies by enabling developers and businesses to run AI locally without API restrictions. However, retaining Muse Spark behind APIs allows Meta to maintain control over its most powerful AI capabilities, balancing openness with proprietary advantage.






