Meta Unveils Muse Wonder Model, Putting Its Expensive AI Rebuild to the Test

Meta announced its most ambitious frontier AI model yet, Muse Wonder, marking the first major test of its rebuilt superintelligence organization and signaling an aggressive push to reclaim lost ground against OpenAI and Google. The model, codenamed Watermelon and still undergoing training, represents a tenfold increase in computational scale compared to Meta's previous Muse Spark model and reflects the company's dramatic restructuring of its AI research apparatus since June 2025.