LLM Countdowns / Meta / Muse Spark 1.5
Meta
Muse Spark 1.5
Tracked as: Muse Spark 1.5 / Muse Spark 2
Estimated release
Nov 19, 2026
Mid Nov 2026
Details
- Status
- Not announced; would follow Muse Spark 1.4
- Current model
- Muse Spark 1.3, 48.1 on the Intelligence Index, released Sep 2, 2026 ()
- Projected score
- About 58.1 (+10)
- Typical cycle
- About 28 days between releases
Why this date
- Meta has released a Muse Spark update about every four weeks (1.1 Jul 9, 1.2 Aug 5, 1.3 Sep 2), with 1.4 expected in late October
- The next step after 1.4 is dated one cycle later; Meta has gone 1.1, 1.2, 1.3, so 1.5 is likelier than a jump to 2
- Muse Spark 1.3 (48.1) reached the frontier on the Coding Agent Index
- Meta's MTIA chips and Prometheus/Hyperion clusters are the compute behind the next generation
Source: Muse Spark release history (Artificial Analysis) & Meta Superintelligence Labs disclosures
More from Meta
October 2026
- Oct 22 Muse Spark 1.4
November 2026
- Nov 19 Muse Spark 1.5