# Kimi K3 vs Muse Spark 1.3

> Side-by-side benchmark comparison for Kimi K3 and Muse Spark 1.3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/kimi-k3-vs-muse-spark-1-3
- Last updated: October 17, 2026

- Shared sourced benchmarks: 11
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Muse Spark 1.3 if you want the stronger benchmark profile. Kimi K3 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Muse Spark 1.3 leads overall 73 to 69.87.
- The clearest category separation is in reasoning, where the averages are 70 for Kimi K3 and 82.9 for Muse Spark 1.3.
- The biggest single benchmark swing is Gray Swan IPI (15 attempts) in Instruction Following, with scores of 52.7% and 15.9%.
- Muse Spark 1.3 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Kimi K3 also has the larger context window at 1.05M.

## Model Snapshot

| Property | Kimi K3 | Muse Spark 1.3 |
|----------|----------|----------|
| Creator | Moonshot AI | Meta |
| Type | Pending | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 1M |
| Overall Score | 69.87 | null |
| Benchmarks Covered | 52 | 20 |
| Pricing (input/output) | $3.00 / $15.00 | $1.25 / $4.25 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Kimi K3 public-lane score: 69.4 (Supported · #10/128)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Kimi K3 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.3% | 88.8% | Muse Spark 1.3 |
| BrowseComp | 91.2% | Coming soon | Coming soon |
| DeepSearchQA | 95.0% | 89.4% | Kimi K3 |
| Toolathlon-Verified | 73.2% | Coming soon | Coming soon |
| MCP Atlas | 84.2% | Coming soon | Coming soon |
| AutomationBench | 30.8% | 49.4% | Muse Spark 1.3 |
| JobBench | 52.9% | 64.9% | Muse Spark 1.3 |
| APEX-Agents | 37.6% | Coming soon | Coming soon |
| SpreadsheetBench 2 | 34.8% | Coming soon | Coming soon |
| DECK-Bench | 73.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 80.9% | 72.3% | Kimi K3 |
| ApprenticeBench | 18% | 19% | Muse Spark 1.3 |
| Hermes Index | 39.2% | Coming soon | Coming soon |
| Hermes Bench | 71.5% | Coming soon | Coming soon |
| MazeBench | 1% | 0% | Kimi K3 |
| OSWorld 2.0 | Coming soon | 66.9% | Coming soon |
| CWE-bench v1 | Coming soon | 55.0% | Coming soon |

### Coding

- Winner: Not comparable
- Kimi K3 public-lane score: 58.9 (Supported · #22/150)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Kimi K3 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 67.5% | 75.4% | Muse Spark 1.3 |
| CursorBench 3.2 | 60.8% | Coming soon | Coming soon |
| FrontierSWE | 81.2% | Coming soon | Coming soon |
| ProgramBench | 77.8% | Coming soon | Coming soon |
| Kimi Code Bench v2 | 72.9% | Coming soon | Coming soon |
| sweMarathon | 42% | Coming soon | Coming soon |
| PostTrain Bench | 36.6% | Coming soon | Coming soon |
| MLS-Bench Lite | 48.3% | Coming soon | Coming soon |
| VulcanBench v3 | 73.7% | Coming soon | Coming soon |
| OpenHarmony Bench | 57.3% | Coming soon | Coming soon |
| FrontierSWE v2 | 25.9% | 25.8% | Kimi K3 |
| LiveCodeBench (Vals) | 87.2% | Coming soon | Coming soon |
| SWE-bench (Vals) | 93.4% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 32.0% | Coming soon | Coming soon |
| Bug Hunt Bench | 21.0 fixes | 32.2 fixes | Muse Spark 1.3 |
| Terminal-Bench 2.1 | Coming soon | 88.8% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 59.4% | Coming soon |
| CursorBench 4.0 | Coming soon | 41.6% | Coming soon |

### Reasoning

- Winner: Directional only
- Kimi K3 public-lane score: 70 (#21/28)
- Muse Spark 1.3 public-lane score: 82.9 (#6/28)

| Benchmark | Kimi K3 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 94.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 60.4% | Coming soon | Coming soon |
| MRCR v2 256K-512K | Coming soon | 98.5% | Coming soon |
| MRCR v2 512K-1M | Coming soon | 98.1% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Kimi K3 public-lane score: 92.6 (#1/54)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Kimi K3 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 63.3% | Coming soon | Coming soon |
| MMMU-Pro | 81.6% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 83.4% | Coming soon | Coming soon |
| CharXiv w/o tools | 84.8% | Coming soon | Coming soon |
| CharXiv | 91.3% | Coming soon | Coming soon |
| MathVision | 94.3% | Coming soon | Coming soon |
| MathVision w/ Python | 97.8% | Coming soon | Coming soon |
| BabyVision w/ Python | 85.7% | Coming soon | Coming soon |
| ZeroBench | 23.0% | Coming soon | Coming soon |
| ZeroBench w/ Python | 41.0% | Coming soon | Coming soon |
| WorldVQA ForceAnswer | 51.0% | Coming soon | Coming soon |
| OmniDocBench | 91.1% | Coming soon | Coming soon |
| PerceptionBench | 58.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Kimi K3 public-lane score: 68.8 (Supported · #21/184)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Kimi K3 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.5% | Coming soon | Coming soon |
| GPQA-D | 93.5% | Coming soon | Coming soon |
| HLE | 56% | Coming soon | Coming soon |
| HLE w/o tools | 43.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 92.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 88.0% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Kimi K3 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Kimi K3 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 52.7% | 15.9% | Muse Spark 1.3 |

### Mathematics

- Winner: Not comparable
- Kimi K3 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: 78.5 (Unranked · 2 rankable rows)

| Benchmark | Kimi K3 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 74.035% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 46.341% | Coming soon |

## FAQ

### Which is better overall, Kimi K3 or Muse Spark 1.3?

Muse Spark 1.3 is ahead overall on BenchLM right now.

### Where is the biggest gap between Kimi K3 and Muse Spark 1.3?

The widest category gap is in reasoning, where the averages are 70 for Kimi K3 and 82.9 for Muse Spark 1.3.

### How many benchmarks does Kimi K3 cover on BenchLM?

Kimi K3 currently has 52 sourced benchmark scores on BenchLM.

### How many benchmarks does Muse Spark 1.3 cover on BenchLM?

Muse Spark 1.3 currently has 20 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Kimi K3 vs Muse Spark 1.1](/compare/kimi-k3-vs-muse-spark-1-1)
- [Muse Spark 1.3 vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-muse-spark-1-3)
- [Kimi K3 vs Muse Spark 1.2](/compare/kimi-k3-vs-muse-spark-1-2)
- [Muse Spark 1.3 vs Muse Spark 1.2](/compare/muse-spark-1-2-vs-muse-spark-1-3)

## Explore More

- [Kimi K3 profile](/models/kimi-k3)
- [Muse Spark 1.3 profile](/models/muse-spark-1-3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)