# Kimi K2.5 (Reasoning) vs Muse Spark

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

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

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Muse Spark if you want the stronger benchmark profile. Kimi K2.5 (Reasoning) 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 57.
- The clearest category separation is in multimodal & grounded, where the averages are 64.4 for Kimi K2.5 (Reasoning) and 78.5 for Muse Spark.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 50.8% and 59%.
- Muse Spark also has the larger context window at 262K.

## Model Snapshot

| Property | Kimi K2.5 (Reasoning) | Muse Spark |
|----------|----------|----------|
| Creator | Moonshot AI | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 262K |
| Overall Score | null | 59.99 |
| Benchmarks Covered | 9 | 27 |
| Pricing (input/output) | $0.60 / $3.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Muse Spark public-lane score: 49.8 (Supported · #43/119)

| Benchmark | Kimi K2.5 (Reasoning) | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 50.8% | 59% | Muse Spark |
| BrowseComp | 60.6% | Coming soon | Coming soon |
| Gert Labs | 32.58% | Coming soon | Coming soon |
| τ²-bench results | Coming soon | 91.5% | Coming soon |
| DeepSearchQA | Coming soon | 74.8% | Coming soon |
| CyberGym | Coming soon | 43.5% | Coming soon |
| Claw-Eval | Coming soon | 63.8% | Coming soon |

### Coding

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Muse Spark public-lane score: 51.1 (Supported · #39/144)

| Benchmark | Kimi K2.5 (Reasoning) | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 76.8% | 77.4% | Muse Spark |
| Vibe Code Bench | 17.54% | 19.67% | Muse Spark |
| SWE-bench Pro | Coming soon | 52.4% | Coming soon |
| LiveCodeBench Pro | Coming soon | 80.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 74.4% | Coming soon |

### Reasoning

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

| Benchmark | Kimi K2.5 (Reasoning) | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 42.5% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: 64.4 (Unranked · 1 rankable row)
- Muse Spark public-lane score: 78.5 (#14/49)

| Benchmark | Kimi K2.5 (Reasoning) | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 78.5% | 80.4% | Muse Spark |
| 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: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Muse Spark public-lane score: 60.3 (Supported · #40/171)

| Benchmark | Kimi K2.5 (Reasoning) | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87.6% | Coming soon | Coming soon |
| MMLU-Pro | 87.1% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 89.5% | Coming soon |
| HLE | Coming soon | 50.4% | Coming soon |
| 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 |

### Instruction Following

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Muse Spark public-lane score: 91.9 (#8/125)

### Mathematics

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Muse Spark public-lane score: 55.1 (Unranked · 2 rankable rows)

| Benchmark | Kimi K2.5 (Reasoning) | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 96.1% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 39.000% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 14.600% | Coming soon |

## FAQ

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

Muse Spark is ahead overall on BenchLM right now.

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

The widest category gap is in multimodal & grounded, where the averages are 64.4 for Kimi K2.5 (Reasoning) and 78.5 for Muse Spark.

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

Kimi K2.5 (Reasoning) currently has 9 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 (Reasoning) vs Kimi K2.5](/compare/kimi-k2-5-vs-kimi-k2-5-reasoning)
- [Muse Spark vs Kimi K2.5](/compare/kimi-k2-5-vs-muse-spark)
- [Kimi K2.5 (Reasoning) vs Muse Spark 1.2](/compare/kimi-k2-5-reasoning-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 (Reasoning) profile](/models/kimi-k2-5-reasoning)
- [Muse Spark profile](/models/muse-spark)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)