What can be compared
| Decision | Muse Spark 1.3 | DeepSeek V4 |
|---|---|---|
| Deployment | Closed hosted model | Specify the exact checkpoint first |
| AA index (3 September 2026) | 61 xhigh / 62 max | Not in the leaderboard's top 20 |
| Matched task-level scores | Launch scorecard available | No matched result published |
Avoid a family-name comparison
Select the exact V4 checkpoint, serving configuration and licence. DeepSeek V4 Pro is the alternative listed on the Muse Spark 1.3 alternatives page; do not mix it with Flash or another family member.
Ready to test the workflow?
No winner declared
Absence from a leaderboard is not a zero score. Run the same tasks before drawing a performance conclusion.