Mark Zuckerberg releases open model but podcast notes hidden caveats

Meta launched Glimmer this week, an open-weight model that anyone can download and run on their own hardware. The move contrasts sharply with Muse Spark, the company’s more powerful model that remains locked behind APIs. The gap between the two products shows Meta has not abandoned its closed model; it is simply adding a local alternative.

Alongside the launch, Mark Zuckerberg published a lengthy letter of about 6,500 words in which he argues that artificial intelligence should be “for everyone” and not be dominated by a handful of labs. The text presents a clear ideological stance, but in the weekly Equity podcast from TechCrunch, hosts Kirsten Korosec, Anthony Ha and Rebecca Bellan flag several asterisks worth noting.

According to the hosts, the distinction between Glimmer and Muse Spark exposes a practical limitation: the open model is weaker, and access to advanced capabilities still passes through Meta’s servers. This is deliberate; the company keeps the competitive edge and control over the stronger model, while the open version mainly serves as a proof-of-concept and a tool for attracting developers to its ecosystem.

The episode also discusses the true energy costs of the AI industry, a concern growing as data centers expand, and a botched $250 million acquisition. Full details of the deal were not provided in the summary, but the hosts describe the outcome as “went very badly.”

Equity is available on YouTube, Apple Podcasts, Overcast, Spotify and other major podcast platforms. Follow the show on X and Threads under the handle @EquityPod.