Kimi K2.5 vs Muse Spark 1.1
Head-to-head comparison across 4benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Muse Spark 1.1 leads for most workloads.
Based on BenchLM composite scores, July 2026.
Kimi K2.5
63
Muse Spark 1.1
78
Verified leaderboard positions: Kimi K2.5 #26 · Muse Spark 1.1 unranked
Pick Muse Spark 1.1 if you want the stronger benchmark profile. Kimi K2.5 only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | Kimi K2.5 | Δ | Muse Spark 1.1 |
|---|---|---|---|
| Agentic | 55.0 | → 25.4 | 80.4 |
| Multimodal | 78.5 | → 9.9 | 88.4 |
| Knowledge | 57.2 | → 4.9 | 62.1 |
| Coding | 65.5 | ← 4.0 | 61.5 |
| Reasoning | 61.0 | — | — |
| Math | 91.4 | — | — |
| Multilingual | 82.3 | — | — |
| Inst. Following | 93.9 | — | — |
Operational Comparison
Kimi K2.5
Muse Spark 1.1
$0.6 / $3
N/A
45 t/s
N/A
2.38s
N/A
256K
1M
Quick Verdict
Pick Muse Spark 1.1 if you want the stronger benchmark profile. Kimi K2.5 only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Muse Spark 1.1 is clearly ahead on the provisional aggregate, 78 to 63. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Muse Spark 1.1's sharpest advantage is in agentic, where it averages 80.4 against 55. The single biggest benchmark swing on the page is HLE, 30.1% to 62.1%. Kimi K2.5 does hit back in coding, so the answer changes if that is the part of the workload you care about most.
Muse Spark 1.1 is the reasoning model in the pair, while Kimi K2.5 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Muse Spark 1.1 gives you the larger context window at 1M, compared with 256K for Kimi K2.5.
Benchmark Deep Dive
Frequently Asked Questions (5)
Which is better, Kimi K2.5 or Muse Spark 1.1?
Muse Spark 1.1 is ahead on BenchLM's provisional leaderboard, 78 to 63. The biggest single separator in this matchup is HLE, where the scores are 30.1% and 62.1%.
Which is better for knowledge tasks, Kimi K2.5 or Muse Spark 1.1?
Muse Spark 1.1 has the edge for knowledge tasks in this comparison, averaging 62.1 versus 57.2. Inside this category, HLE is the benchmark that creates the most daylight between them.
Which is better for coding, Kimi K2.5 or Muse Spark 1.1?
Kimi K2.5 has the edge for coding in this comparison, averaging 65.5 versus 61.5. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, Kimi K2.5 or Muse Spark 1.1?
Muse Spark 1.1 has the edge for agentic tasks in this comparison, averaging 80.4 versus 55. Inside this category, MCP Atlas is the benchmark that creates the most daylight between them.
Which is better for multimodal and grounded tasks, Kimi K2.5 or Muse Spark 1.1?
Muse Spark 1.1 has the edge for multimodal and grounded tasks in this comparison, averaging 88.4 versus 78.5. Kimi K2.5 stays close enough that the answer can still flip depending on your workload.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
Related Comparisons
The AI models change fast. We track them for you.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.