# Muse Spark Open vs A.X series

> Side-by-side benchmark comparison for Muse Spark Open and A.X series across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/muse-spark-open-vs-skt-ax
- Last updated: October 15, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Muse Spark Open and A.X series.

## Summary

- Muse Spark Open and A.X series do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Muse Spark Open | A.X series |
|----------|----------|----------|
| Creator | Meta | SK Telecom |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 64K |
| Independent public score (not head-to-head) | 62.66 | null |
| Benchmarks Covered | 7 | 0 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 60.2 (Estimated · #27/127)
- A.X series public-lane score: Coming soon

| Benchmark | Muse Spark Open | A.X series | Winner |
|-----------|-----------|-----------|--------|
| JobBench | 61.8% | Coming soon | Coming soon |
| MCP Atlas | 89.2% | Coming soon | Coming soon |
| HLE w/ tools | 61.0% | Coming soon | Coming soon |
| Toolathlon-Verified | 72.8% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 56.1 (Supported · #29/150)
- A.X series public-lane score: Coming soon

### Reasoning

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 79.6 (Unranked · 2 rankable rows)
- A.X series public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 83.6 (Unranked · 4 rankable rows)
- A.X series public-lane score: Coming soon

| Benchmark | Muse Spark Open | A.X series | Winner |
|-----------|-----------|-----------|--------|
| ZeroBench | 50.0% | Coming soon | Coming soon |
| BabyVision | 80.2% | Coming soon | Coming soon |
| SimpleVQA | 73.6% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 64.6 (Supported · #38/184)
- A.X series public-lane score: Coming soon

## FAQ

### Can I compare Muse Spark Open and A.X series on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Muse Spark Open vs A.X K2](/compare/a-x-k2-vs-muse-spark-open)
- [A.X series vs A.X K2](/compare/a-x-k2-vs-skt-ax)
- [Muse Spark Open vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-muse-spark-open)
- [A.X series vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-skt-ax)

## Explore More

- [Muse Spark Open profile](/models/muse-spark-open)
- [A.X series profile](/models/skt-ax)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)