# GPT-6 Sol vs Muse Spark

> Side-by-side benchmark comparison for GPT-6 Sol and Muse Spark across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-6-sol-vs-muse-spark
- Last updated: September 22, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-6 Sol and Muse Spark 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.
- GPT-6 Sol has the larger published context window at 1.05M.

## Model Snapshot

| Property | GPT-6 Sol | Muse Spark |
|----------|----------|----------|
| Creator | OpenAI | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 262K |
| Independent public score (not head-to-head) | 80.45 | 67.26 |
| Benchmarks Covered | 10 | 27 |
| Pricing (input/output) | $2.00 / $10.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-6 Sol public-lane score: 69.7 (Estimated · #7/157)
- Muse Spark public-lane score: 55.4 (Supported · #40/157)

| Benchmark | GPT-6 Sol | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| Agents' Last Exam | 56.4% | Coming soon | Coming soon |
| AutomationBench | 33.2% | Coming soon | Coming soon |
| OSWorld 2.0 | 60.5% | Coming soon | Coming soon |
| ExploitGym | 22.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 59% | Coming soon |
| τ²-bench results | Coming soon | 91.5% | Coming soon |
| DeepSearchQA | Coming soon | 74.8% | Coming soon |
| CyberGym | Coming soon | 43.5% | Coming soon |
| Claw-Eval | Coming soon | 63.8% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-6 Sol public-lane score: 74.3 (Estimated · #6/159)
- Muse Spark public-lane score: 59.4 (Supported · #28/159)

| Benchmark | GPT-6 Sol | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 68.8% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 77.4% | Coming soon |
| SWE-bench Pro | Coming soon | 52.4% | Coming soon |
| LiveCodeBench Pro | Coming soon | 80.0% | Coming soon |
| Vibe Code Bench | Coming soon | 19.67% | Coming soon |
| SWE-bench (Vals) | Coming soon | 74.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-6 Sol public-lane score: 78.5 (#5/17)
- Muse Spark public-lane score: 45.1 (Unranked · 3 rankable rows)

| Benchmark | GPT-6 Sol | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 42.5% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-6 Sol public-lane score: 82.8 (Unranked · 1 rankable row)
- Muse Spark public-lane score: 77.5 (#14/50)

| Benchmark | GPT-6 Sol | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 86.4% | Coming soon |
| MMMU-Pro | Coming soon | 80.4% | Coming soon |
| ERQA | Coming soon | 64.7% | Coming soon |
| SimpleVQA | Coming soon | 71.3% | Coming soon |
| ScreenSpot Pro | Coming soon | 84.1% | Coming soon |
| ZeroBench | Coming soon | 33.0% | Coming soon |
| MedXpertQA (MM) | Coming soon | 78.4% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-6 Sol public-lane score: 80.2 (Estimated · #6/189)
- Muse Spark public-lane score: 65.2 (Supported · #26/189)

| Benchmark | GPT-6 Sol | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| HealthBench (raw) | 47.1% | Coming soon | Coming soon |
| HealthBench (length-adjusted) | 53.2% | Coming soon | Coming soon |
| HealthBench Professional | 60.8% | Coming soon | Coming soon |
| HealthBench Professional (raw) | 59.5% | Coming soon | Coming soon |
| HealthBench Hard | 30.1% | 42.8% | Muse Spark |
| GPQA-D | Coming soon | 89.5% | Coming soon |
| HLE | Coming soon | 50.4% | Coming soon |
| HLE w/o tools | Coming soon | 42.8% | Coming soon |
| MedXpertQA (Text) | Coming soon | 52.6% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 89.6% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 87.3% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-6 Sol public-lane score: Coming soon
- Muse Spark public-lane score: 91.9 (#8/124)

### Mathematics

- Winner: Insufficient shared evidence
- GPT-6 Sol public-lane score: Coming soon
- Muse Spark public-lane score: 55.1 (Unranked · 2 rankable rows)

| Benchmark | GPT-6 Sol | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 39.000% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 14.600% | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-6 Sol and Muse Spark?

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

- [GPT-6 Sol vs GPT-6 Astra](/compare/gpt-6-astra-vs-gpt-6-sol)
- [Muse Spark vs GPT-6 Astra](/compare/gpt-6-astra-vs-muse-spark)
- [GPT-6 Sol vs GPT-6 Luna](/compare/gpt-6-luna-vs-gpt-6-sol)
- [Muse Spark vs GPT-6 Luna](/compare/gpt-6-luna-vs-muse-spark)

## Explore More

- [GPT-6 Sol profile](/models/gpt-6-sol)
- [Muse Spark profile](/models/muse-spark)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)