Community Questions Meta Over Delayed Open Weights Release for Muse Spark

A Reddit post in the r/LocalLLaMA community highlighted that Meta has not yet released the open model weights for Muse Spark, despite promising them over a month ago. While Meta has already updated Muse Spark from version 1.2 to 1.3 via API, no weights have been made available for open download. Meta has built strong support within the AI ecosystem by advocating for open-source AI and releasing open-weight models like Llama to compete with global rivals. Delays in releasing weights raise concerns among open-source developers about whether Meta is shifting toward proprietary API-only models. The post highlights the contradiction with Mark Zuckerberg's previous statements warning that even a one-month delay in releasing AI models could cause the U.S. to fall behind open Chinese models. Muse Spark 1.3 is a multimodal reasoning model with a 1-million-token context window designed for coding and agentic workflows, currently accessible only via paid API.