Meta's Muse appears to use an OpenAI model labeled muse-special

Meta's AI assistant Muse appears to use multiple third-party AI models behind the scenes, including OpenAI's GPT models and Anthropic's Claude, despite being marketed as powered by Meta's internal Avocado model. A researcher discovered references to these external models in Muse's filesystem, including an "azure/muse-special" model with OpenAI-style signatures and encryption, along with API keys and specialized integration code for both OpenAI and Anthropic services. The findings raise questions about whether Meta is transparently disclosing its reliance on competitor models to power Muse's capabilities.