ForecastMetalanguage model

Muse Spark 1.4 Contributor has not been announced. Based on how often Meta ships new versions, our forecast is that it arrives around November 3, 2026, probably between October 30, 2026 and November 16, 2026.

The forecast

Most likely	November 3, 2026
Window	October 30, 2026 to November 16, 2026
Chance it arrives in that window	About 30%
Follows	Muse Spark 1.3 Contributor (out September 2, 2026)
Based on	1 earlier gap between versions

How we got this

Meta is the maker of Muse Spark 1.3 Contributor. We look at the gaps between its earlier versions (Muse Spark 1.2 Contributor, 2026-08-21; Muse Spark 1.3 Contributor, 2026-09-02) and project the next one. It is a guess from a pattern, not news: the maker has not said Muse Spark 1.4 Contributor exists. This page turns into the launch page, with price and facts, as soon as the model shows up on OpenRouter, Hugging Face or GitHub.

Available now from Meta

Predicted automatically by Modelcast. Not affiliated with Meta.