Muse Glimmer
is a 30-billion-parameter (29.6B including vision encoder) dense causal language model with a dedicated ~1.8B-parameter ViT-G/14 perception encoder, released by Meta Superintelligence Lab as a distillation of Muse Spark purpose-built for autonomous agentic tasks running entirely on consumer hardware without cloud infrastructure. It integrates multi-step reasoning, reliable schema-based tool use, multimodal understanding (interleaved text and images), and failure recovery into a single locally-runnable model, with a 131K+ token context window, controllable reasoning strength (low/medium/high/xhigh), and compatibility with agentic scaffolds like OpenClaw and Hermes Agent. Optimized for on-device deployment, 4-bit quantization shrinks the model under 20GB with minimal degradation (0.2–1.0% across 15 benchmarks), and it ships with a DFlash speculative-decoding drafter that predicts 16-token blocks for up to 3.1x generation speedup on an RTX 5090 (233 tok/s) and 1.8x on an Apple M5 Max (50 tok/s). On agentic and reasoning benchmarks, Muse Glimmer generally outperforms similarly-sized Gemma4-31B and often trades blows with or edges out Qwen3.6-27B — leading on MCP Atlas (75.5), DeepSearch QA (74.6), Gaia2 (43.3), and AIME 2026 (94.7) — while trailing on tasks like OSWorld-Verified and TerminalBench 2.1; it was assessed by Meta's Preparedness Team at "moderate or lower" risk across chem/bio, cyber, and loss-of-control axes, trained with safety SFT and RL for tool-use boundaries and prompt-injection resistance, and is released under Apache 2.0 with full-precision, two 4-bit quantized variants, the DFlash drafter, and the perception encoder all publicly available; it is not intended for use by individuals under 18.