# Kimi K2 vs Muse Spark Open

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

- Canonical page: https://benchlm.ai/compare/kimi-k2-vs-muse-spark-open
- Last updated: October 15, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Kimi K2 and Muse Spark Open.

## Summary

- Kimi K2 and Muse Spark Open do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Kimi K2 | Muse Spark Open |
|----------|----------|----------|
| Creator | Moonshot AI | Meta |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 1M |
| Independent public score (not head-to-head) | 33.5 | 62.66 |
| Benchmarks Covered | 13 | 7 |
| Pricing (input/output) | $0.60 / $2.50 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Kimi K2 public-lane score: Coming soon
- Muse Spark Open public-lane score: 60.2 (Estimated · #27/127)

| Benchmark | Kimi K2 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| JobBench | Coming soon | 61.8% | Coming soon |
| MCP Atlas | Coming soon | 89.2% | Coming soon |
| HLE w/ tools | Coming soon | 61.0% | Coming soon |
| Toolathlon-Verified | Coming soon | 72.8% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Kimi K2 public-lane score: Coming soon
- Muse Spark Open public-lane score: 56.1 (Supported · #29/150)

| Benchmark | Kimi K2 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 65.8% | Coming soon | Coming soon |
| LiveCodeBench v6 | 53.7% | Coming soon | Coming soon |
| SWE Multilingual | 47.3% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Kimi K2 public-lane score: 62.3 (Unranked · 2 rankable rows)
- Muse Spark Open public-lane score: 79.6 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Kimi K2 public-lane score: Coming soon
- Muse Spark Open public-lane score: 83.6 (Unranked · 4 rankable rows)

| Benchmark | Kimi K2 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| ZeroBench | Coming soon | 50.0% | Coming soon |
| BabyVision | Coming soon | 80.2% | Coming soon |
| SimpleVQA | Coming soon | 73.6% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Kimi K2 public-lane score: 36.2 (Estimated · #129/184)
- Muse Spark Open public-lane score: 64.6 (Supported · #38/184)

| Benchmark | Kimi K2 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 89.5% | Coming soon | Coming soon |
| GPQA | 75.1% | Coming soon | Coming soon |
| SuperGPQA | 57.2% | Coming soon | Coming soon |
| MMLU-Pro | 81.1% | Coming soon | Coming soon |
| SimpleQA | 31% | Coming soon | Coming soon |
| HLE | 4.7% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Kimi K2 public-lane score: 48.4 (#94/146)
- Muse Spark Open public-lane score: Coming soon

| Benchmark | Kimi K2 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 89.8% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Kimi K2 public-lane score: 0 (#12/12)
- Muse Spark Open public-lane score: Coming soon

| Benchmark | Kimi K2 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| AIME 2024 | 69.6% | Coming soon | Coming soon |
| AIME 2025 | 49.5% | Coming soon | Coming soon |
| MATH-500 | 97.4% | Coming soon | Coming soon |

## FAQ

### Can I compare Kimi K2 and Muse Spark Open on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Kimi K2 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-kimi-k2)
- [Muse Spark Open vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-muse-spark-open)
- [Kimi K2 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-kimi-k2)
- [Muse Spark Open vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-muse-spark-open)

## Explore More

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