# Claude Fable 5 vs Muse Spark 1.2

> Side-by-side benchmark comparison for Claude Fable 5 and Muse Spark 1.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-fable-vs-muse-spark-1-2
- Last updated: September 18, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Claude Fable 5 if you want the stronger benchmark profile. Muse Spark 1.2 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Fable 5 leads overall 81.41 to 70.28.
- The clearest category separation is in coding, where the averages are 76.9 for Claude Fable 5 and 60 for Muse Spark 1.2.
- The biggest single benchmark swing is FrontierSWE v2 in Coding, with scores of 47.0% 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.

## Model Snapshot

| Property | Claude Fable 5 | Muse Spark 1.2 |
|----------|----------|----------|
| Creator | Anthropic | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M+ | 1M |
| Overall Score | 81.41 | 70.28 |
| Benchmarks Covered | 19 | 8 |
| Pricing (input/output) | $10.00 / $50.00 | $1.25 / $4.25 |

## Category Breakdown

### Agentic

- Winner: Claude Fable 5
- Claude Fable 5 public-lane score: 75.3 (Supported · #3/154)
- Muse Spark 1.2 public-lane score: 61 (Supported · #16/154)

| Benchmark | Claude Fable 5 | Muse Spark 1.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 34.0% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 84.3% | Coming soon | Coming soon |
| OSWorld-Verified | 85% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 80.5% | 69.7% | Claude Fable 5 |
| ApprenticeBench | 34% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 82.9% | Coming soon |

### Coding

- Winner: Claude Fable 5
- Claude Fable 5 public-lane score: 76.9 (Supported · #2/154)
- Muse Spark 1.2 public-lane score: 60 (Supported · #21/154)

| Benchmark | Claude Fable 5 | Muse Spark 1.2 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 95% | Coming soon | Coming soon |
| SWE-bench Pro | 80% | Coming soon | Coming soon |
| FrontierSWE v2 | 47.0% | 12.0% | Claude Fable 5 |
| FrontierCode 1.1 Main | 53.5% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 84.3% | Coming soon | Coming soon |
| cursorBench31 | 70.6% | Coming soon | Coming soon |
| cursorBench32 | 70.5% | Coming soon | Coming soon |
| VulcanBench v3 | 89.5% | 87.0% | Claude Fable 5 |
| LiveCodeBench (Vals) | 89.8% | Coming soon | Coming soon |
| SWE-bench (Vals) | 95.0% | 86.6% | Claude Fable 5 |
| Terminal-Bench 2.1 | Coming soon | 82.9% | Coming soon |
| DeepSWE | Coming soon | 59.3% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Claude Fable 5 public-lane score: 62.6 (Unranked · 2 rankable rows)
- Muse Spark 1.2 public-lane score: Coming soon

| Benchmark | Claude Fable 5 | Muse Spark 1.2 | Winner |
|-----------|-----------|-----------|--------|
| Blueprint-Bench 2 | 38.6% | Coming soon | Coming soon |
| OfficeQA Pro | 57.9% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- Claude Fable 5 public-lane score: 77.6 (#6/20)
- Muse Spark 1.2 public-lane score: 75.3 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Coming soon
- Claude Fable 5 public-lane score: 83.3 (Supported · #2/184)
- Muse Spark 1.2 public-lane score: 70.7 (Estimated · #10/184)

| Benchmark | Claude Fable 5 | Muse Spark 1.2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 93.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 91.5% | 88.3% | Claude Fable 5 |

### Instruction Following

- Winner: Coming soon
- Claude Fable 5 public-lane score: 77 (#57/124)
- Muse Spark 1.2 public-lane score: Coming soon

## FAQ

### Which is better overall, Claude Fable 5 or Muse Spark 1.2?

Claude Fable 5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Fable 5 and Muse Spark 1.2?

The widest category gap is in coding, where the averages are 76.9 for Claude Fable 5 and 60 for Muse Spark 1.2.

### How many benchmarks does Claude Fable 5 cover on BenchLM?

Claude Fable 5 currently has 19 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

- [Claude Fable 5 vs Claude Fable 5.1](/compare/claude-fable-vs-claude-fable-5-1)
- [Muse Spark 1.2 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-muse-spark-1-2)
- [Claude Fable 5 vs Muse Spark 1.1](/compare/claude-fable-vs-muse-spark-1-1)
- [Muse Spark 1.2 vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-muse-spark-1-2)

## Explore More

- [Claude Fable 5 profile](/models/claude-fable)
- [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)