Muse Spark 1.1

Published

Jul 9, 2026

Muse Spark 1.1 is an AI model developed by Meta AI (United States), first published in July 2026. It works in the language domain, on tasks such as language modeling/generation.

Epoch AI has no training-compute estimate for this model.

Access: API access. Its weights are not openly released. Epoch AI rates the confidence of this record as confident.

Full record

Organization: Meta AI
Country of organization: United States
Domain: Language
Task: Language modeling/generation
Model accessibility: API access
Open weights: No
Epoch confidence: Confident

Benchmark results

01	Deepswe	Pass@1	0.53
02	Proofbench	Accuracy	0.39
03	Critpt	Accuracy	0.15