Meta stock pops again as its new Muse AI models enjoy a moment in the spotlight

Meta has released two new frontier AI models, Muse Wonder and Muse Wonder Full, which were unveiled on Monday, October 12. According to The Indian Express, these models—previously code-named ‘Watermelon’—are designed to power personal and professional AI agents and feature "Active Memory" and "Active Focus" capabilities. Meta claims these models represent a significant leap over previous predecessors like Muse Spark and Muse Glimmer.

Fortune reports that CEO Mark Zuckerberg told the Financial Times that Meta has reached the "frontier" with these releases, which build on the momentum of the Muse personal assistant that recently reached the top of the Apple App Store.

Performance metrics for the new models vary by source. Meta’s own benchmarks indicate the Muse models outperform OpenAI’s GPT-6 and Anthropic’s Claude Fable 5.1 in coding and memory. Quartz reports that Wells Fargo stated Muse Wonder Full ranks behind only Anthropic's Claude Opus 5.5 on one industry index. Additionally, the firm Vals found the Wonder model is number one on cybersecurity tasks, while Artificial Analysis described the models as a material jump in intelligence over Meta's previous versions.

The Muse assistant, which has surpassed five million downloads, includes a free version and paid subscription tiers of $20 or $100 per month, according to Fortune. Mashable and Techmeme report that the Muse assistant can engage in explicit adult conversations. Techmeme notes that Meta confirmed the agent does not block "legal adult behavior," allowing users to engage in such conversations using a private and secure VM.

While Meta's announcement stated Muse is for everyone, Mashable reports that the Supplemental Terms of Service specify the assistant is only for adults.

Brief written by urgent.news from Quartz, Fortune, Mashable, The Indian Express, Techmeme — 5 reports on this story. Machine-written — may contain errors; check the original before relying on it.