# Kimi K2.5 vs Muse Spark

> Side-by-side benchmark comparison for Kimi K2.5 and Muse Spark across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/kimi-k2-5-vs-muse-spark
- Last updated: October 5, 2026

- Shared sourced benchmarks: 10
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Muse Spark if you want the stronger benchmark profile. Kimi K2.5 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Muse Spark leads overall 59.99 to 52.04.
- The clearest category separation is in multimodal & grounded, where the averages are 66.8 for Kimi K2.5 and 78.5 for Muse Spark.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 30.1% and 50.4%.
- Muse Spark also has the larger context window at 262K.

## Model Snapshot

| Property | Kimi K2.5 | Muse Spark |
|----------|----------|----------|
| Creator | Moonshot AI | Meta |
| Type | Open Weight | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 256K | 262K |
| Overall Score | 52.04 | 59.99 |
| Benchmarks Covered | 45 | 27 |
| Pricing (input/output) | $0.60 / $3.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Directional only
- Kimi K2.5 public-lane score: 38.1 (Estimated · #63/119)
- Muse Spark public-lane score: 49.8 (Supported · #43/119)

| Benchmark | Kimi K2.5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 50.8% | 59% | Muse Spark |
| BrowseComp | 60.6% | Coming soon | Coming soon |
| Claw-Eval | 52.3% | 63.8% | Muse Spark |
| QwenClawBench | 54.3% | Coming soon | Coming soon |
| τ³-bench results | 65.7% | Coming soon | Coming soon |
| DeepSearchQA | 77.1% | 74.8% | Kimi K2.5 |
| DeepPlanning | 14.4% | Coming soon | Coming soon |
| Toolathlon | 27.8% | Coming soon | Coming soon |
| MCP Atlas | 29.5% | Coming soon | Coming soon |
| MCP-Tasks | 59.1% | Coming soon | Coming soon |
| WideResearch | 72.7% | Coming soon | Coming soon |
| Gert Labs | 45.88% | Coming soon | Coming soon |
| ResearchClawBench | 14.0% | Coming soon | Coming soon |
| JobBench | 8.7% | Coming soon | Coming soon |
| τ²-bench results | Coming soon | 91.5% | Coming soon |
| CyberGym | Coming soon | 43.5% | Coming soon |

### Coding

- Winner: Directional only
- Kimi K2.5 public-lane score: 39.6 (Estimated · #63/144)
- Muse Spark public-lane score: 51.1 (Supported · #39/144)

| Benchmark | Kimi K2.5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 76.8% | 77.4% | Muse Spark |
| SWE-bench Verified* | 70.8% | Coming soon | Coming soon |
| LiveCodeBench v6 | 85.0% | Coming soon | Coming soon |
| SWE-bench Pro | 50.7% | 52.4% | Muse Spark |
| SWE Multilingual | 73% | Coming soon | Coming soon |
| SWE-Rebench | 58.5% | Coming soon | Coming soon |
| React Native Evals | 77.2% | Coming soon | Coming soon |
| SciCode | 48.7% | Coming soon | Coming soon |
| LiveCodeBench Pro | Coming soon | 80.0% | Coming soon |
| Vibe Code Bench | Coming soon | 19.67% | Coming soon |
| SWE-bench (Vals) | Coming soon | 74.4% | Coming soon |

### Reasoning

- Winner: Not comparable
- Kimi K2.5 public-lane score: 55.2 (Unranked · 3 rankable rows)
- Muse Spark public-lane score: 53.4 (Unranked · 3 rankable rows)

| Benchmark | Kimi K2.5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 61% | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 42.5% | Coming soon |

### Multimodal & Grounded

- Winner: Directional only
- Kimi K2.5 public-lane score: 66.8 (#24/49)
- Muse Spark public-lane score: 78.5 (#14/49)

| Benchmark | Kimi K2.5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 78.5% | 80.4% | Muse Spark |
| Video-MME | 87.4% | Coming soon | Coming soon |
| MMVU | 80.4% | Coming soon | Coming soon |
| VideoMMMU | 86.6% | Coming soon | Coming soon |
| CharXiv | Coming soon | 86.4% | Coming soon |
| ERQA | Coming soon | 64.7% | Coming soon |
| SimpleVQA | Coming soon | 71.3% | Coming soon |
| ScreenSpot Pro | Coming soon | 84.1% | Coming soon |
| ZeroBench | Coming soon | 33.0% | Coming soon |
| MedXpertQA (MM) | Coming soon | 78.4% | Coming soon |

### Knowledge

- Winner: Directional only
- Kimi K2.5 public-lane score: 49.6 (Estimated · #67/171)
- Muse Spark public-lane score: 60.3 (Supported · #40/171)

| Benchmark | Kimi K2.5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87.6% | Coming soon | Coming soon |
| GPQA-D | 87.6% | 89.5% | Muse Spark |
| SuperGPQA | 69.2% | Coming soon | Coming soon |
| MMLU-Pro | 87.1% | Coming soon | Coming soon |
| MMLU-Pro (Arcee) | 87.1% | Coming soon | Coming soon |
| HLE | 30.1% | 50.4% | Muse Spark |
| HLE w/o tools | Coming soon | 42.8% | Coming soon |
| HealthBench Hard | Coming soon | 42.8% | Coming soon |
| MedXpertQA (Text) | Coming soon | 52.6% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 89.6% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 87.3% | Coming soon |

### Multilingual

- Winner: Not comparable
- Kimi K2.5 public-lane score: 87.3 (#8/16)
- Muse Spark public-lane score: Coming soon

| Benchmark | Kimi K2.5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | 82.3% | Coming soon | Coming soon |
| NOVA-63 | 56.0% | Coming soon | Coming soon |

### Instruction Following

- Winner: Directional only
- Kimi K2.5 public-lane score: 84.4 (#41/125)
- Muse Spark public-lane score: 91.9 (#8/125)

| Benchmark | Kimi K2.5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 93.9% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Kimi K2.5 public-lane score: 62.1 (#4/7)
- Muse Spark public-lane score: 55.1 (Unranked · 2 rankable rows)

| Benchmark | Kimi K2.5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 96.1% | Coming soon | Coming soon |
| AIME26 | 95.8% | Coming soon | Coming soon |
| AIME25 (Arcee) | 96.3% | Coming soon | Coming soon |
| HMMT Feb 2025 | 95.4% | Coming soon | Coming soon |
| HMMT Nov 2025 | 91.1% | Coming soon | Coming soon |
| HMMT Feb 2026 | 87.1% | Coming soon | Coming soon |
| MMAnswerBench | 81.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 27.900% | 39.000% | Muse Spark |
| FrontierMath v2 (Tier 4) | 4.200% | 14.600% | Muse Spark |

## FAQ

### Which is better overall, Kimi K2.5 or Muse Spark?

Muse Spark is ahead overall on BenchLM right now.

### Where is the biggest gap between Kimi K2.5 and Muse Spark?

The widest category gap is in multimodal & grounded, where the averages are 66.8 for Kimi K2.5 and 78.5 for Muse Spark.

### How many benchmarks does Kimi K2.5 cover on BenchLM?

Kimi K2.5 currently has 45 sourced benchmark scores on BenchLM.

### How many benchmarks does Muse Spark cover on BenchLM?

Muse Spark currently has 27 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Kimi K2.5 vs Kimi K2.5 (Reasoning)](/compare/kimi-k2-5-vs-kimi-k2-5-reasoning)
- [Muse Spark vs Kimi K2.5 (Reasoning)](/compare/kimi-k2-5-reasoning-vs-muse-spark)
- [Kimi K2.5 vs Muse Spark 1.2](/compare/kimi-k2-5-vs-muse-spark-1-2)
- [Muse Spark vs Muse Spark 1.2](/compare/muse-spark-vs-muse-spark-1-2)

## Explore More

- [Kimi K2.5 profile](/models/kimi-k2-5)
- [Muse Spark profile](/models/muse-spark)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)