# Claude Opus 4.8 vs Muse Spark 1.1

> Side-by-side benchmark comparison for Claude Opus 4.8 and Muse Spark 1.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-8-vs-muse-spark-1-1
- Last updated: October 7, 2026

- Shared sourced benchmarks: 17
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Claude Opus 4.8 if you want the stronger benchmark profile. Muse Spark 1.1 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Opus 4.8 leads overall 69.11 to 65.95.
- The clearest category separation is in reasoning, where the averages are 59.1 for Claude Opus 4.8 and 75.7 for Muse Spark 1.1.
- The biggest single benchmark swing is Toolathlon in Agentic, with scores of 59.9% and 75.6%.

## Model Snapshot

| Property | Claude Opus 4.8 | Muse Spark 1.1 |
|----------|----------|----------|
| Creator | Anthropic | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 69.11 | 65.95 |
| Benchmarks Covered | 40 | 26 |
| Pricing (input/output) | $5.00 / $25.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Claude Opus 4.8
- Claude Opus 4.8 public-lane score: 61.6 (Supported · #20/122)
- Muse Spark 1.1 public-lane score: 56.9 (Supported · #32/122)

| Benchmark | Claude Opus 4.8 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 21.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 74.6% | 80.0% | Muse Spark 1.1 |
| BrowseComp | 84.3% | Coming soon | Coming soon |
| DeepSearchQA | 93.1% | 84.9% | Claude Opus 4.8 |
| OSWorld-Verified | 83.4% | 80.8% | Claude Opus 4.8 |
| Finance Agent v2 | 53.9% | 57.2% | Muse Spark 1.1 |
| MCP Atlas | 82.2% | 88.1% | Muse Spark 1.1 |
| Toolathlon | 59.9% | 75.6% | Muse Spark 1.1 |
| Gert Labs | 72.97% | Coming soon | Coming soon |
| ResearchClawBench | 21.1% | Coming soon | Coming soon |
| OSWorld 2.0 | 20.6% | 14.2% | Claude Opus 4.8 |
| Terminal-Bench 2.1 (Vals) | 71.9% | 69.3% | Claude Opus 4.8 |
| WebArena-Verified | Coming soon | 69% | Coming soon |
| CyberGym | Coming soon | 59.0% | Coming soon |
| deepSwe | Coming soon | 53.3% | Coming soon |
| JobBench | Coming soon | 54.7% | Coming soon |
| Cybench | Coming soon | 92.9% | Coming soon |
| ExploitGym | Coming soon | 0.8% | Coming soon |

### Coding

- Winner: Claude Opus 4.8
- Claude Opus 4.8 public-lane score: 61.5 (Supported · #18/146)
- Muse Spark 1.1 public-lane score: 54.2 (Supported · #35/146)

| Benchmark | Claude Opus 4.8 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 88.6% | Coming soon | Coming soon |
| SWE-bench Pro | 69.2% | 61.5% | Claude Opus 4.8 |
| SWE Multilingual | 84.4% | Coming soon | Coming soon |
| SWE Multimodal | 38.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 74.6% | 80.0% | Muse Spark 1.1 |
| cursorBench31 | 58.4% | Coming soon | Coming soon |
| CursorBench 3.2 | 62.3% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 46.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.8% | 85.9% | Claude Opus 4.8 |
| SWE-bench (Vals) | 88.6% | 82.0% | Claude Opus 4.8 |
| PostTrainBench v1.1 | 32.9% | Coming soon | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 59.1 (#23/28)
- Muse Spark 1.1 public-lane score: 75.7 (Unranked · 3 rankable rows)

| Benchmark | Claude Opus 4.8 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 72.1% | Coming soon | Coming soon |
| ARC-AGI-3 | 1.5% | Coming soon | Coming soon |
| ARC-AGI-1 | 92.50% | Coming soon | Coming soon |
| MRCR 1M | Coming soon | 54.1% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 87.7 (#7/49)
- Muse Spark 1.1 public-lane score: 78.3 (Unranked · 2 rankable rows)

| Benchmark | Claude Opus 4.8 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 66.2% | Coming soon | Coming soon |
| ScreenSpot Pro | 87.9% | Coming soon | Coming soon |
| CharXiv | 89.9% | 88.4% | Claude Opus 4.8 |
| CharXiv w/o tools | 80.5% | Coming soon | Coming soon |
| BabyVision | Coming soon | 76.3% | Coming soon |

### Knowledge

- Winner: Claude Opus 4.8
- Claude Opus 4.8 public-lane score: 69.3 (Supported · #15/174)
- Muse Spark 1.1 public-lane score: 66.7 (Supported · #21/174)

| Benchmark | Claude Opus 4.8 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.6% | Coming soon | Coming soon |
| GPQA-D | 93.6% | Coming soon | Coming soon |
| HLE | 57.9% | 62.1% | Muse Spark 1.1 |
| HLE w/o tools | 49.8% | 52.2% | Muse Spark 1.1 |
| GPQA Diamond (Vals) | 92.4% | 91.2% | Claude Opus 4.8 |
| MMLU-Pro (Vals) | 89.6% | 88.7% | Claude Opus 4.8 |
| HealthBench Professional | Coming soon | 59.3% | Coming soon |

### Multilingual

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: Coming soon
- Muse Spark 1.1 public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| INCLUDE | 87.6% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 74 (#60/125)
- Muse Spark 1.1 public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 65.2 (#2/7)
- Muse Spark 1.1 public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Muse Spark 1.1 | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | 96.7% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 47.241% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 31.250% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.8 or Muse Spark 1.1?

Claude Opus 4.8 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.8 and Muse Spark 1.1?

The widest category gap is in reasoning, where the averages are 59.1 for Claude Opus 4.8 and 75.7 for Muse Spark 1.1.

### How many benchmarks does Claude Opus 4.8 cover on BenchLM?

Claude Opus 4.8 currently has 40 sourced benchmark scores on BenchLM.

### How many benchmarks does Muse Spark 1.1 cover on BenchLM?

Muse Spark 1.1 currently has 26 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Opus 4.8 vs Muse Spark 1.2](/compare/claude-opus-4-8-vs-muse-spark-1-2)
- [Muse Spark 1.1 vs Muse Spark 1.2](/compare/muse-spark-1-1-vs-muse-spark-1-2)
- [Claude Opus 4.8 vs Muse Spark](/compare/claude-opus-4-8-vs-muse-spark)
- [Muse Spark 1.1 vs Muse Spark](/compare/muse-spark-vs-muse-spark-1-1)

## Explore More

- [Claude Opus 4.8 profile](/models/claude-opus-4-8)
- [Muse Spark 1.1 profile](/models/muse-spark-1-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)