# Kimi K3 vs Muse Spark 1.2

> Side-by-side benchmark comparison for Kimi K3 and Muse Spark 1.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/kimi-k3-vs-muse-spark-1-2
- Last updated: October 2, 2026

- Shared sourced benchmarks: 7
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Kimi K3 leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Kimi K3 has the higher overall point estimate 72.14 to 65.73. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in reasoning, where the averages are 65.8 for Kimi K3 and 76.6 for Muse Spark 1.2.
- The biggest single benchmark swing is FrontierSWE v2 in Coding, with scores of 25.9% and 12.0%.
- Muse Spark 1.2 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 1.2 |
|----------|----------|----------|
| Creator | Moonshot AI | Meta |
| Type | Pending | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 1M |
| Overall Score | 72.14 | 65.73 |
| Benchmarks Covered | 48 | 8 |
| Pricing (input/output) | $3.00 / $15.00 | $1.25 / $4.25 |

## Category Breakdown

### Agentic

- Winner: Kimi K3
- Kimi K3 public-lane score: 68.1 (Supported · #8/119)
- Muse Spark 1.2 public-lane score: 59.1 (Supported · #26/119)

| Benchmark | Kimi K3 | Muse Spark 1.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.3% | 82.9% | Kimi K3 |
| BrowseComp | 91.2% | Coming soon | Coming soon |
| DeepSearchQA | 95.0% | Coming soon | Coming soon |
| Toolathlon-Verified | 73.2% | Coming soon | Coming soon |
| MCP Atlas | 84.2% | Coming soon | Coming soon |
| AutomationBench | 30.8% | Coming soon | Coming soon |
| JobBench | 52.9% | Coming soon | Coming soon |
| 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% | 69.7% | Kimi K3 |
| ApprenticeBench | 18% | Coming soon | Coming soon |

### Coding

- Winner: Kimi K3
- Kimi K3 public-lane score: 61.4 (Supported · #18/144)
- Muse Spark 1.2 public-lane score: 55 (Supported · #33/144)

| Benchmark | Kimi K3 | Muse Spark 1.2 | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 67.5% | 59.3% | Kimi K3 |
| 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% | 87.0% | Muse Spark 1.2 |
| OpenHarmony Bench | 57.3% | Coming soon | Coming soon |
| FrontierSWE v2 | 25.9% | 12.0% | Kimi K3 |
| LiveCodeBench (Vals) | 87.2% | Coming soon | Coming soon |
| SWE-bench (Vals) | 93.4% | 86.6% | Kimi K3 |
| PostTrainBench v1.1 | 32.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 82.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- Kimi K3 public-lane score: 65.8 (#18/27)
- Muse Spark 1.2 public-lane score: 76.6 (Unranked · 2 rankable rows)

| Benchmark | Kimi K3 | Muse Spark 1.2 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 94.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 60.4% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Kimi K3 public-lane score: 89.4 (#1/49)
- Muse Spark 1.2 public-lane score: Coming soon

| Benchmark | Kimi K3 | Muse Spark 1.2 | 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: Kimi K3
- Kimi K3 public-lane score: 67.9 (Supported · #18/171)
- Muse Spark 1.2 public-lane score: 64.4 (Supported · #28/171)

| Benchmark | Kimi K3 | Muse Spark 1.2 | 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% | 88.3% | Muse Spark 1.2 |

### Instruction Following

- Winner: Not comparable
- Kimi K3 public-lane score: Coming soon
- Muse Spark 1.2 public-lane score: Coming soon

| Benchmark | Kimi K3 | Muse Spark 1.2 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 52.7% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Kimi K3 or Muse Spark 1.2?

Kimi K3 has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Kimi K3 and Muse Spark 1.2?

The widest category gap is in reasoning, where the averages are 65.8 for Kimi K3 and 76.6 for Muse Spark 1.2.

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

Kimi K3 currently has 48 sourced benchmark scores on BenchLM.

### How many benchmarks does Muse Spark 1.2 cover on BenchLM?

Muse Spark 1.2 currently has 8 sourced benchmark scores on BenchLM.

## Related Comparisons

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

## Explore More

- [Kimi K3 profile](/models/kimi-k3)
- [Muse Spark 1.2 profile](/models/muse-spark-1-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)