Muse Spark successor comparison
Frontier comparisonMuse Spark 1.3 vs Muse Spark 1.2: Complete Comparison
Muse Spark 1.3 is Meta's September 2, 2026 hosted coding and agent checkpoint; Muse Spark 1.2 remains the previous version and the documented Muse Code default.
Featured · Updated today · Last verified: September 2026 · Score 96
Choose Muse Spark 1.3 when
New Meta Model API and Muse Code routes that need the current agent/coding checkpoint.
Choose Muse Spark 1.2 when
Pinned 1.2 production and Muse Code installs that have not switched the default.
Short verdict
1.3 is the current Spark. 1.2 is the documented CLI default and audio-safer fallback.
Key differences
Agent/coding tuning, max effort, and audio support. Same Standard sticker.
Best for
Upgrade API defaults. Pin 1.2 only where transcripts or audio cannot move.
Reasoning fit
Try high before max. Max is Standard-only.
Coding workflow fit
Change the Muse Code model setting; do not assume the installer did.
Multimodal fit
Images and video on both. Dedicated ASR is a different model.
Enterprise fit
Standard vs Contributor is the real procurement split.
Who should not choose this?
- Do not delete 1.2 on day one.
- Do not pick 1.3 for production ASR.
- Do not treat this as Muse Agent vs Claude.
Cost considerations
Same list. 1.3 may use fewer tokens if Meta's internal comparison holds on your tasks.
Limitations
Verified September 8, 2026.
Final recommendation
Make 1.3 the API default this week. Flip Muse Code after one repo bakeoff. Keep 1.2 as a pin.