Meta Superintelligence Labs ships Muse Spark, its first frontier model. It's also Meta's first AI model without open weights. Independent testing shows it closing the gap to OpenAI, Anthropic, and Google, at least for now.
Meta has unveiled Muse Spark, the debut model in the new Muse family from its in-house Superintelligence Labs. It's a native multimodal reasoning model with tool use, visual chain-of-thought reasoning, and multi-agent orchestration.
The model is live on meta.ai and in the Meta AI app, with a private API preview going out to select users. Unlike previous Llama models, Muse Spark isn't open-weight and can't be run locally - a sharp break from the open-source playbook Meta championed for years. But the company's enormous spending on AI infrastructure and specialized talent, which might come at the expense of other roles, has to start paying for itself eventually.
Open source isn't completely off the table, though. Meta is reportedly planning to open-source parts of its new AI models, and AI chief Alexandr Wang says the company has "plans to open-source future versions."
Strong benchmarks, but gaps remain in agentic and coding tasks
