# Gemini 4 Carbon vs Muse Spark 1.3

> Side-by-side benchmark comparison for Gemini 4 Carbon and Muse Spark 1.3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-4-carbon-vs-muse-spark-1-3
- Last updated: October 28, 2026

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

## Quick Verdict

Gemini 4 Carbon leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Gemini 4 Carbon has the higher overall point estimate 88.42 to 71. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in reasoning, where the averages are 79.5 for Gemini 4 Carbon and 82 for Muse Spark 1.3.
- The biggest single benchmark swing is FrontierSWE v2 in Coding, with scores of 61.2% and 25.8%.
- Muse Spark 1.3 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Muse Spark 1.3 also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 4 Carbon | Muse Spark 1.3 |
|----------|----------|----------|
| Creator | Google | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | null | 1M |
| Overall Score | 88.42 | null |
| Benchmarks Covered | 9 | 20 |
| Pricing (input/output) | $2.00 / $10.00 | $1.25 / $4.25 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Gemini 4 Carbon public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.9% | 49.4% | Gemini 4 Carbon |
| OSWorld 2.1 Offline | 81.5% | Coming soon | Coming soon |
| CWE-bench v1 | 71.0% | 55.0% | Gemini 4 Carbon |
| ExploitGym | 53.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.8% | Coming soon |
| JobBench | Coming soon | 64.9% | Coming soon |
| OSWorld 2.0 | Coming soon | 66.9% | Coming soon |
| DeepSearchQA | Coming soon | 89.4% | Coming soon |
| ApprenticeBench | Coming soon | 19% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 72.3% | Coming soon |
| MazeBench | Coming soon | 0% | Coming soon |

### Coding

- Winner: Not comparable
- Gemini 4 Carbon public-lane score: 82.2 (Supported · #3/156)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| FrontierSWE v2 | 61.2% | 25.8% | Gemini 4 Carbon |
| Terminal-Bench 2.1 | Coming soon | 88.8% | Coming soon |
| DeepSWE | Coming soon | 75.4% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 59.4% | Coming soon |
| CursorBench 4.0 | Coming soon | 41.6% | Coming soon |
| Bug Hunt Bench | Coming soon | 32.2 fixes | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 4 Carbon public-lane score: 79.5 (Unranked · 2 rankable rows)
- Muse Spark 1.3 public-lane score: 82 (Unranked · 2 rankable rows)

| Benchmark | Gemini 4 Carbon | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| GraphWalks BFS 256K–1M | 96.2% | 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
- Gemini 4 Carbon public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 72.5% | Coming soon | Coming soon |
| Blueprint-Bench 2 | 58.6% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Gemini 4 Carbon public-lane score: 88.2 (Supported · #2/178)
- Muse Spark 1.3 public-lane score: Coming soon

### Instruction Following

- Winner: Not comparable
- Gemini 4 Carbon public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Gemini 4 Carbon | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 0.0% | 15.9% | Gemini 4 Carbon |

### Mathematics

- Winner: Not comparable
- Gemini 4 Carbon public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: 78.5 (Unranked · 2 rankable rows)

| Benchmark | Gemini 4 Carbon | 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, Gemini 4 Carbon or Muse Spark 1.3?

Gemini 4 Carbon has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Gemini 4 Carbon and Muse Spark 1.3?

The widest category gap is in reasoning, where the averages are 79.5 for Gemini 4 Carbon and 82 for Muse Spark 1.3.

### How many benchmarks does Gemini 4 Carbon cover on BenchLM?

Gemini 4 Carbon currently has 9 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

- [Gemini 4 Carbon vs Gemini 4 Argon](/compare/gemini-4-argon-vs-gemini-4-carbon)
- [Muse Spark 1.3 vs Gemini 4 Argon](/compare/gemini-4-argon-vs-muse-spark-1-3)
- [Gemini 4 Carbon vs Muse Spark 1.2](/compare/gemini-4-carbon-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

- [Gemini 4 Carbon profile](/models/gemini-4-carbon)
- [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)