yahoo news | Meta Platforms surges 7% amid AI model debut
Meta Platforms’ shares jumped 7% on Wednesday after the company unveiled Muse Spark, its first artificial‑intelligence model released since CEO Mark Zuckerberg began a multibillion‑dollar overhaul of Meta’s AI operations. The surge came amid broadly strong technology stocks and highlighted the debut of the first offering in Meta’s new Muse family, developed by Meta Superintelligence Labs.
Muse Spark brings native multimodal reasoning, tool‑use support, visual chain‑of‑thought capabilities, and multi‑agent orchestration. It is accessible via meta.ai, the Meta AI app, and a private API preview for select users. Alongside it, Meta introduced “Contemplating” mode, which runs multiple agents concurrently and achieved 58% on Humanity’s Last Exam and 38% on FrontierScience Research. After nine months of rebuilding its pre‑training stack—improving architecture, optimization, and data curation—Meta reports comparable performance with over an order of magnitude less compute than its previous Llama 4 Maverick model.
The model is geared toward multimodal visual integration across domains and health‑related reasoning, built with input from more than 1,000 physicians to improve medical responses. Muse Spark can produce interactive displays that explain nutritional content and muscle activation during exercise. In safety tests under Meta’s Advanced AI Scaling Framework, it showed strong refusal behavior in high‑risk areas such as biological and chemical weapons, and third‑party assessments by Apollo Research noted it had the highest rate of evaluation awareness among the models they have examined.
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