Muse Spark

Published

Apr 8, 2026

Muse Spark is an AI model developed by Meta AI (United States), first published in April 2026. It works in the multimodal, language and vision domain, on tasks such as language modeling/generation and question answering.

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: Multimodal, Language, Vision
Task: Language modeling/generation, Question answering
Model accessibility: API access
Open weights: No
Epoch confidence: Confident

Benchmark results

01	WebDev Arena	Arena Score	1512.5
02	Epoch Capabilities Index	ECI Score	154.3
03	GPQA Diamond	mean_score	0.9
04	OTIS Mock AIME 2024-2025	mean_score	0.89
05	SimpleQA Verified	mean_score	0.66
06	SciCode	Score	0.52
07	Humanity's Last Exam	Accuracy	0.41
08	FrontierMath	mean_score	0.39
09	Proofbench	Accuracy	0.17
10	FrontierMath Tier 4	mean_score	0.15
11	Critpt	Accuracy	0.11