# Claude 4.1 Opus vs Muse Spark 1.3

> Side-by-side benchmark comparison for Claude 4.1 Opus and Muse Spark 1.3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-4-1-opus-vs-muse-spark-1-3
- Last updated: September 21, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude 4.1 Opus and Muse Spark 1.3 share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Muse Spark 1.3 has the lower published output-token price.
- Muse Spark 1.3 has the larger published context window at 1M.

## Model Snapshot

| Property | Claude 4.1 Opus | Muse Spark 1.3 |
|----------|----------|----------|
| Creator | Anthropic | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 1M |
| Independent public score (not head-to-head) | 42.1 | null |
| Benchmarks Covered | 2 | 13 |
| Pricing (input/output) | $15.00 / $75.00 | $1.25 / $4.25 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude 4.1 Opus public-lane score: 43.1 (Estimated · #105/154)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Claude 4.1 Opus | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| JobBench | 21.9% | 64.9% | Muse Spark 1.3 |
| Terminal-Bench 2.1 | Coming soon | 88.8% | Coming soon |
| OSWorld 2.0 | Coming soon | 66.9% | Coming soon |
| DeepSearchQA | Coming soon | 89.4% | Coming soon |
| AutomationBench | Coming soon | 49.4% | Coming soon |
| ApprenticeBench | Coming soon | 19% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 72.3% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude 4.1 Opus public-lane score: 43.2 (Estimated · #107/156)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Claude 4.1 Opus | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 74.5% | Coming soon | Coming soon |
| 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 |
| cursorBench40 | Coming soon | 41.6% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude 4.1 Opus public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: 78 (#5/19)

| Benchmark | Claude 4.1 Opus | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 256K-512K | Coming soon | 98.5% | Coming soon |
| MRCR v2 512K-1M | Coming soon | 98.1% | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude 4.1 Opus and Muse Spark 1.3?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Claude 4.1 Opus vs Claude 4.1 Opus Thinking](/compare/claude-4-1-opus-vs-claude-4-1-opus-thinking)
- [Muse Spark 1.3 vs Claude 4.1 Opus Thinking](/compare/claude-4-1-opus-thinking-vs-muse-spark-1-3)
- [Claude 4.1 Opus vs Muse Spark 1.2](/compare/claude-4-1-opus-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

- [Claude 4.1 Opus profile](/models/claude-4-1-opus)
- [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)