Meta gave Muse Spark Open additional safety post-training because the model's weights are public

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From the postIntroducing Muse Spark Open, The Most Capable US Open-Weight Model to Date

Introducing Muse Spark Open, The Most Capable US Open-Weight Model to Date

Meta's research blog post launching Muse Spark Open, its 816-billion-parameter open-weight multimodal model, with availability, licence and safety details.