# GLM-5 vs Spark-X2.6-4B

> Side-by-side benchmark comparison for GLM-5 and Spark-X2.6-4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-vs-spark-x2-6-4b
- Last updated: October 20, 2026

- Shared sourced benchmarks: 14
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

GLM-5 leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- GLM-5 has the higher overall point estimate 54.83 to 40.14. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in reasoning, where the averages are 70.1 for GLM-5 and 48.8 for Spark-X2.6-4B.
- The biggest single benchmark swing is MCP Atlas in Agentic, with scores of 31.1% and 62.4%.
- Spark-X2.6-4B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Spark-X2.6-4B also has the larger context window at 1M.

## Model Snapshot

| Property | GLM-5 | Spark-X2.6-4B |
|----------|----------|----------|
| Creator | Z.AI | SparkLLM |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 1M |
| Overall Score | 54.83 | 40.14 |
| Benchmarks Covered | 38 | 20 |
| Pricing (input/output) | $1.00 / $3.20 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- GLM-5 public-lane score: 41.7 (Estimated · #65/131)
- Spark-X2.6-4B public-lane score: 33 (Estimated · #89/131)

| Benchmark | GLM-5 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 56.2% | Coming soon | Coming soon |
| BrowseComp | 62% | 53.1% | GLM-5 |
| HLE w/ tools | 50.4% | 36.9% | GLM-5 |
| Claw-Eval | 57.7% | 69.9% | Spark-X2.6-4B |
| QwenClawBench | 54.1% | Coming soon | Coming soon |
| τ³-bench results | 65.6% | 34.7% | GLM-5 |
| DeepPlanning | 14.6% | Coming soon | Coming soon |
| Toolathlon | 38% | Coming soon | Coming soon |
| MCP Atlas | 31.1% | 62.4% | Spark-X2.6-4B |
| MCP-Tasks | 60.8% | Coming soon | Coming soon |
| WideResearch | 69.8% | Coming soon | Coming soon |
| CyberGym | 43.2% | Coming soon | Coming soon |
| Gert Labs | 50.99% | Coming soon | Coming soon |
| BFCL v4 | Coming soon | 71.8% | Coming soon |
| τ²-bench results | Coming soon | 86.9% | Coming soon |

### Coding

- Winner: Directional only
- GLM-5 public-lane score: 38.1 (Estimated · #71/152)
- Spark-X2.6-4B public-lane score: 30.6 (Estimated · #95/152)

| Benchmark | GLM-5 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 77.8% | 62.8% | GLM-5 |
| SWE-bench Verified* | 72.8% | Coming soon | Coming soon |
| SWE-bench Pro | 55.1% | 54.3% | GLM-5 |
| SWE Multilingual | 73.3% | 64.7% | GLM-5 |
| NL2Repo | 35.9% | Coming soon | Coming soon |
| SWE-Rebench | 62.8% | Coming soon | Coming soon |
| React Native Evals | 74.8% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 56.2% | Coming soon | Coming soon |
| SciCode | Coming soon | 36.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- GLM-5 public-lane score: 70.1 (Unranked · 4 rankable rows)
- Spark-X2.6-4B public-lane score: 48.8 (Unranked · 2 rankable rows)

| Benchmark | GLM-5 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 60.8% | 53.3% | GLM-5 |
| AI-Needle | 63.3% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- GLM-5 public-lane score: 50.4 (Estimated · #82/187)
- Spark-X2.6-4B public-lane score: 43 (Estimated · #109/187)

| Benchmark | GLM-5 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 86% | 69.9% | GLM-5 |
| GPQA-D | 86.0% | 77.1% | GLM-5 |
| SuperGPQA | 66.8% | Coming soon | Coming soon |
| MMLU-Pro | 85.7% | Coming soon | Coming soon |
| MMLU-Pro (Arcee) | 85.8% | Coming soon | Coming soon |
| HLE | 30.5% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 17.9% | Coming soon |

### Multilingual

- Winner: Not comparable
- GLM-5 public-lane score: 89.5 (#6/17)
- Spark-X2.6-4B public-lane score: Coming soon

| Benchmark | GLM-5 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | 83.1% | Coming soon | Coming soon |
| NOVA-63 | 55.1% | Coming soon | Coming soon |

### Instruction Following

- Winner: Directional only
- GLM-5 public-lane score: 88.6 (#35/149)
- Spark-X2.6-4B public-lane score: 78.2 (#62/149)

| Benchmark | GLM-5 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 92.6% | 93.6% | Spark-X2.6-4B |
| IFBench | Coming soon | 75.8% | Coming soon |

### Mathematics

- Winner: Not comparable
- GLM-5 public-lane score: 83 (Unranked · 6 rankable rows)
- Spark-X2.6-4B public-lane score: 76.4 (Unranked · 3 rankable rows)

| Benchmark | GLM-5 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.8% | 91.2% | GLM-5 |
| AIME25 (Arcee) | 93.3% | Coming soon | Coming soon |
| HMMT Feb 2025 | 97.5% | Coming soon | Coming soon |
| HMMT Nov 2025 | 96.9% | Coming soon | Coming soon |
| HMMT Feb 2026 | 86.4% | 81.3% | GLM-5 |
| MMAnswerBench | 82.5% | Coming soon | Coming soon |
| IMOAnswerBench | Coming soon | 75.2% | Coming soon |

## FAQ

### Which is better overall, GLM-5 or Spark-X2.6-4B?

GLM-5 has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between GLM-5 and Spark-X2.6-4B?

The widest category gap is in reasoning, where the averages are 70.1 for GLM-5 and 48.8 for Spark-X2.6-4B.

### How many benchmarks does GLM-5 cover on BenchLM?

GLM-5 currently has 38 sourced benchmark scores on BenchLM.

### How many benchmarks does Spark-X2.6-4B cover on BenchLM?

Spark-X2.6-4B currently has 20 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GLM-5 vs GLM-5.3](/compare/glm-5-vs-glm-5-3)
- [Spark-X2.6-4B vs GLM-5.3](/compare/glm-5-3-vs-spark-x2-6-4b)
- [GLM-5 vs GLM-5.2](/compare/glm-5-vs-glm-5-2)
- [Spark-X2.6-4B vs GLM-5.2](/compare/glm-5-2-vs-spark-x2-6-4b)

## Explore More

- [GLM-5 profile](/models/glm-5)
- [Spark-X2.6-4B profile](/models/spark-x2-6-4b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)