Muse Spark is an AI model released by Meta on Apr 8 2026, 368 days after LLaMA 4 Maverick. It is the 9th tracked release from Meta out of 9 total.
On published benchmarks, it scores 89.5% on GPQA Diamond (graduate-level science reasoning), 77.4% on SWE-Bench Verified (real-world software engineering), 80.4% on MMMU (multimodal understanding).
About Meta: Develops the open-weight Llama series of models. Committed to open-source AI research.