Muse Spark
MetaProprietaryReleased Apr 8, 2026
Muse Spark ranks #25 on LMArena (1473.9).
Key metrics
Rank history
LMArena rank, last 17 days#22 on Sep 23, #25 now; best #22 in this period.
Models ranked nearby
Sorted by Arena score| # | Model | Arena | Intel. | Output $ | tok/s |
|---|---|---|---|---|---|
| 18 | Muse Spark 1.1 | 1478.6 | 33.7 | $4.25 | – |
| 19 |  Qwen3.7 Max | 1475.7 | 29.5 | $7.50 | – |
| 20 |  Kimi K3 | 1475.5 | 43.6 | $15.00 | 38 |
| 21 | Muse SparkThis page | 1473.9 | 31.3 | – | – |
| 22 |  GPT-5.5 | 1471.5 | 38.4 | $30.00 | – |
| 23 |  GLM-5.3 | 1471.2 | 44.8 | $4.40 | 65 |
| 24 |  Claude Sonnet 5.5 | 1471.2 | 56.0 | $10.00 | 137 |
More from Meta
| # | Model | Arena | Intel. | Output $ | tok/s |
|---|---|---|---|---|---|
| 10 | Muse Spark 1.3 | 1489.6 | 48.1 | $4.25 | 118 |
| 13 | Muse Spark 1.2 | 1482.3 | 39.6 | $4.25 | – |
| 18 | Muse Spark 1.1 | 1478.6 | 33.7 | $4.25 | – |
Sources & methodology
Muse Spark (Meta): Arena 1473.9 (#25), Intelligence Index 31.3. Data updated Oct 9, 2026.
- LMArena — Arena score, 95% confidence interval, votes and rank.
- Artificial Analysis — Intelligence / Coding Index, output speed and latency (medians).
- OpenRouter — Route prices, context length and listing date.
Arena scores use the Bradley-Terry model (not Elo); ± is the half-width of the 95% confidence interval. Latency figures are Artificial Analysis medians; for reasoning models, time to first token and to first answer include the thinking phase. Data syncs daily at 14:20 (UTC+8).
FAQ
What rank is Muse Spark right now?
Muse Spark is #21 on our leaderboard of 68 scored models (Arena score 1473.9); its raw LMArena rank is #25.
How close is Muse Spark to the models ranked next to it?
It is 1.6 points behind Kimi K3 (1475.5) and 2.4 points ahead of GPT-5.5 (1471.5); gaps smaller than the confidence interval (±5.7) are not significant.
Is Muse Spark open source? Can it be self-hosted?
Muse Spark is a closed model, available only via official APIs or hosted services.