# Muse Spark Open vs Seed 2.1 Turbo

> Side-by-side benchmark comparison for Muse Spark Open and Seed 2.1 Turbo across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/muse-spark-open-vs-seed-2-1-turbo
- Last updated: October 15, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Muse Spark Open and Seed 2.1 Turbo share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Muse Spark Open has the larger published context window at 1M.

## Model Snapshot

| Property | Muse Spark Open | Seed 2.1 Turbo |
|----------|----------|----------|
| Creator | Meta | ByteDance |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Independent public score (not head-to-head) | 62.66 | null |
| Benchmarks Covered | 7 | 11 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 60.2 (Estimated · #27/127)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Muse Spark Open | Seed 2.1 Turbo | 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 |
| Terminal-Bench 2.1 | Coming soon | 67.6% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 56.1 (Supported · #29/150)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Muse Spark Open | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | Coming soon | 67.6% | Coming soon |
| NL2Repo | Coming soon | 43.7% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 79.6 (Unranked · 2 rankable rows)
- Seed 2.1 Turbo public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 83.6 (Unranked · 4 rankable rows)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Muse Spark Open | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| ZeroBench | 50.0% | 11.0% | Muse Spark Open |
| BabyVision | 80.2% | 62.9% | Muse Spark Open |
| SimpleVQA | 73.6% | Coming soon | Coming soon |
| MathVision | Coming soon | 90.1% | Coming soon |
| MMMU-Pro | Coming soon | 80.1% | Coming soon |
| CharXiv | Coming soon | 82.5% | Coming soon |
| ERQA | Coming soon | 71.3% | Coming soon |
| Video-MME | Coming soon | 89.0% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Muse Spark Open public-lane score: 64.6 (Supported · #38/184)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Muse Spark Open | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| SuperGPQA | Coming soon | 67.4% | Coming soon |

## FAQ

### Is there enough evidence to pick between Muse Spark Open and Seed 2.1 Turbo?

Not yet. The models share only 2 sourced benchmark rows, 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

- [Muse Spark Open vs Seed 2.1 Pro](/compare/muse-spark-open-vs-seed-2-1-pro)
- [Seed 2.1 Turbo vs Seed 2.1 Pro](/compare/seed-2-1-pro-vs-seed-2-1-turbo)
- [Muse Spark Open vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-muse-spark-open)
- [Seed 2.1 Turbo vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-seed-2-1-turbo)

## Explore More

- [Muse Spark Open profile](/models/muse-spark-open)
- [Seed 2.1 Turbo profile](/models/seed-2-1-turbo)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)