Meta's latest model is as open as Zuckerberg's private school

Nearly two years after extolling the virtues of open source AI, Meta CEO Mark Zuckerberg is singing a different tune. 

On Wednesday, the social media magnate unveiled its first new model developed by its Superintelligence team. But this is no Llama, and you can't download its weights.

The model, dubbed Muse Spark, is proprietary with access limited to Meta's AI portal or API access for those lucky enough to get an invite. Yep, this thing's locked down tighter than Zuck's private school.

Detailed in a blog post, Meta described the model as the "first step on our scaling ladder and the first product of a ground-up overhaul of our AI efforts."

Meta's decision not to release Muse Spark's weights comes in stark contrast to Zuckerberg's earlier position that "open source AI represents the world's best shot at harnessing this technology to create ...