# GLM-5.3 vs Muse Spark Open

> Side-by-side benchmark comparison for GLM-5.3 and Muse Spark Open across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-3-vs-muse-spark-open
- 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: GLM-5.3 and Muse Spark Open 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 lower published output-token price.

## Model Snapshot

| Property | GLM-5.3 | Muse Spark Open |
|----------|----------|----------|
| Creator | Z.AI | Meta |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 67.86 | 62.66 |
| Benchmarks Covered | 31 | 7 |
| Pricing (input/output) | $0.00 / $0.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GLM-5.3 public-lane score: 70.3 (Supported · #8/127)
- Muse Spark Open public-lane score: 60.2 (Estimated · #27/127)

| Benchmark | GLM-5.3 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.2% | Coming soon | Coming soon |
| terminalBench3 | 28.3% | Coming soon | Coming soon |
| CyberGym | 84.5% | Coming soon | Coming soon |
| ExploitGym | 15.0% | Coming soon | Coming soon |
| Toolathlon-Verified | 73.0% | 72.8% | GLM-5.3 |
| AutomationBench | 48.2% | Coming soon | Coming soon |
| Agents' Last Exam | 28.5% | Coming soon | Coming soon |
| HLE w/ tools | 62.5% | 61.0% | GLM-5.3 |
| Terminal-Bench 2.1 (Vals) | 71.5% | Coming soon | Coming soon |
| Hermes Index | 39.2% | Coming soon | Coming soon |
| Hermes Bench | 71.8% | Coming soon | Coming soon |
| MazeBench | 0% | Coming soon | Coming soon |
| JobBench | Coming soon | 61.8% | Coming soon |
| MCP Atlas | Coming soon | 89.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GLM-5.3 public-lane score: 56.4 (Supported · #28/150)
- Muse Spark Open public-lane score: 56.1 (Supported · #29/150)

| Benchmark | GLM-5.3 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.2% | Coming soon | Coming soon |
| terminalBench3 | 28.3% | Coming soon | Coming soon |
| DeepSWE | 66.9% | Coming soon | Coming soon |
| NL2Repo | 58% | Coming soon | Coming soon |
| ProgramBench | 19.0% | Coming soon | Coming soon |
| FrontierSWE | 78.1% | Coming soon | Coming soon |
| sweMarathon | 42.5% | Coming soon | Coming soon |
| PostTrain Bench | 39.8% | Coming soon | Coming soon |
| VulcanBench v3 | 78.3% | Coming soon | Coming soon |
| OpenHarmony Bench | 60.8% | Coming soon | Coming soon |
| FrontierSWE v2 | 30.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 80.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 95.4% | Coming soon | Coming soon |
| Bug Hunt Bench | 19.0 fixes | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GLM-5.3 public-lane score: 80.6 (#13/28)
- Muse Spark Open public-lane score: 79.6 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GLM-5.3 public-lane score: Coming soon
- Muse Spark Open public-lane score: 83.6 (Unranked · 4 rankable rows)

| Benchmark | GLM-5.3 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| ZeroBench | Coming soon | 50.0% | Coming soon |
| BabyVision | Coming soon | 80.2% | Coming soon |
| SimpleVQA | Coming soon | 73.6% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GLM-5.3 public-lane score: 62.6 (Supported · #43/184)
- Muse Spark Open public-lane score: 64.6 (Supported · #38/184)

| Benchmark | GLM-5.3 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 88.1% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.8% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GLM-5.3 public-lane score: Coming soon
- Muse Spark Open public-lane score: Coming soon

| Benchmark | GLM-5.3 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 31.5% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GLM-5.3 public-lane score: 71.5 (Unranked · 2 rankable rows)
- Muse Spark Open public-lane score: Coming soon

| Benchmark | GLM-5.3 | Muse Spark Open | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 68.772% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 29.268% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between GLM-5.3 and Muse Spark Open?

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

- [GLM-5.3 vs GLM-5.2](/compare/glm-5-2-vs-glm-5-3)
- [Muse Spark Open vs GLM-5.2](/compare/glm-5-2-vs-muse-spark-open)
- [GLM-5.3 vs GLM-5.3-Flash](/compare/glm-5-3-vs-glm-5-3-flash)
- [Muse Spark Open vs GLM-5.3-Flash](/compare/glm-5-3-flash-vs-muse-spark-open)

## Explore More

- [GLM-5.3 profile](/models/glm-5-3)
- [Muse Spark Open profile](/models/muse-spark-open)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)