Meta releases Muse Ember for high-volume agent work

Meta said on Nov. 9, 2026 that Muse Ember (muse-ember-1.0) is available on Muse Code and the Meta Model API, with a 1 million-token context window and up to 512,000 output tokens, and that it is the first model trained using Muse Wonder Full. The research post lists $0.10 per million input tokens, $0.004 per million cached input tokens, and $0.50 per million output tokens. The developer post says the $0.10 and $0.50 rates apply up to 200,000 input tokens and that longer prompts cost $0.30 per million input tokens and $1.50 per million output tokens.