Muse Spark 1.4

Estimated release

Oct 22, 2026

Late Oct 2026

Details

Status: Teased as 'coming soon'; spotted in an OpenCode listing
Current model: Muse Spark 1.3, 48.1 on the Intelligence Index, released Sep 2, 2026 ()
Projected score: About 53.1 (+5)
Typical cycle: About 28 days between releases

Meta called its next major model 'coming soon' in a keynote, and a muse-spark-1.4-contributor entry has appeared on OpenCode's model data page
Muse Spark has shipped roughly monthly (1.1 Jul 9, 1.2 Aug 5, 1.3 Sep 2), so a ~28 day cycle put 1.4 due around Sept 30
Each point release added 6-9 points on the Intelligence Index (1.1 33.7, 1.2 39.6, 1.3 48.1)
Not confirmed by Meta: no model card, benchmarks, pricing or API docs yet; prediction markets put ~48% on release by Oct 21 and ~89% by Nov 1

Source: OpenCode data page listing, Meta keynote 'coming soon' tease & Manifold Muse Spark 1.4 release-date market (Oct 2026)