Meta launches Muse Ember to take on Claude Haiku and GPT-6 Luna

Meta on Monday debuted Muse Ember, a smaller, more efficient multimodal member of its Muse model family. The company is clearly taking a similar approach to the other frontier labs, with a family of models that cover everything from focused, high-volume tasks (think OpenAI’s GPT-6 Luna and Anthropic’s Claude Haiku 5.5 ) to frontier intelligence like OpenAI’s GPT-6 Astra, Anthropic’s Claude Fable 5.1, and, most recently, Meta’s Muse Wonder Full. And just like its competitors, Meta is pitching the smaller model for agentic subtasks like reading files, running tests, and making targeted fixes, with a larger model like Muse Wonder doing the planning. Muse Ember is available in Muse Code and through the Meta Model API under the model ID muse-ember-1.0.