Investing.com -- Meta Platforms (NASDAQ: META) shares rose 7% Wednesday following the company’s introduction of Muse Spark, its first artificial intelligence model release since Chief Executive Officer Mark Zuckerberg initiated a multibillion-dollar reorganization of its AI operations.

The stock gained amid broad strength in technology shares and the debut of the new AI model, which represents the initial offering in Meta’s Muse family developed by Meta Superintelligence Labs.

Muse Spark features native multimodal reasoning capabilities, including tool-use support, visual chain of thought, and multi-agent orchestration. The model is available at meta.ai and through the Meta AI app, with a private API preview opening to select users.

Meta also introduced Contemplating mode, which operates multiple agents that reason simultaneously, achieving 58% performance in Humanity’s Last Exam and 38% in FrontierScience Research.

The company rebuilt its pretraining stack over nine months with improvements to model architecture, optimization, and data curation. Meta reports reaching the same capabilities with over an order of magnitude less compute compared to its previous model, Llama 4 Maverick.

The model’s applications include multimodal visual integration across domains and health reasoning capabilities. Meta collaborated with over 1,000 physicians to develop training data for health-related responses. Muse Spark can generate interactive displays explaining nutritional content and muscles activated during exercise.

In safety evaluations conducted under Meta’s Advanced AI Scaling Framework, Muse Spark demonstrated strong refusal behavior across high-risk domains including biological and chemical weapons. Third-party evaluations by Apollo Research found the model showed the highest rate of evaluation awareness among models they have observed.