Alexandr Wang Commits Meta to Open-Weighting Muse Spark 1.2 — Its Frontier 1M-Context Model, Not Just the Small One
Alexandr Wang on X, corroborated by WSJ via Techmeme and r/singularity (156 upvotes)via @alexandr_wang·high signal
In the same 2026-08-10 announcement cycle, Meta Chief AI Officer Alexandr Wang posted on X that Meta "will be releasing an open weight version of muse spark 1.2 soon" — the 1M-token-context frontier model launched 2026-08-05 that currently costs $1.25 per million input tokens on the Meta Model API. The Wall Street Journal (via Techmeme) frames the Spark 1.2 open-weight release as landing "in the coming weeks." A top r/LocalLLaMA commenter caught the strategic implication immediately: "Spark 1.2 is excellent. That one will really fuck with Anthropic/OpenAI. They won't be able to cry about distillation or scare businesses with Chyna fears."