Meta's $15 Billion Muse Spark Gamble: Is the Llama Open-Source Era Over?

Meta just dropped another bomb. Muse Spark—codenamed “Avocado”—officially launched. It’s the first product from Meta Superintelligence Labs (MSL) and marks Meta’s first serious push into closed-source AI foundation models. $15 billion. Let that number sink in. That’s a staggering sum—even certain domestic AI unicorns aren’t valued that high. Zuckerberg is serious this time. Here’s what got people talking: Llama 2, Llama 3—all open source. Now suddenly there’s a closed-source Muse Spark. The immediate narrative: the open-source era is over. I think that reading is premature. Muse Spark and Llama serve different objectives. Llama’s open-source approach was strategic—building an ecosystem. Muse Spark looks more like Meta’s play for the high-end model market, directly competing with GPT-4o and Claude Opus. What’s actually noteworthy is that Meta is now betting on both open and closed simultaneously. The Llama family handles the mass market. Muse Spark goes after enterprise clients. The Llama open-source era isn’t ending. Meta is simply opening a second front—one that’s closed-source and aimed directly at the top of the market.