# GLM-5.3 vs Laguna S 2.1

> Side-by-side benchmark comparison for GLM-5.3 and Laguna S 2.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-3-vs-laguna-s-2-1
- Last updated: September 28, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick GLM-5.3 if you want the stronger benchmark profile. Laguna S 2.1 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GLM-5.3 leads overall 65.44 to 51.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 66.9% and 40.4%.
- GLM-5.3 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | GLM-5.3 | Laguna S 2.1 |
|----------|----------|----------|
| Creator | Z.AI | Poolside |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 65.44 | null |
| Benchmarks Covered | 24 | 6 |
| Pricing (input/output) | $0.00 / $0.00 | $0.10 / $0.20 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- GLM-5.3 public-lane score: 67.4 (Supported · #9/117)
- Laguna S 2.1 public-lane score: Coming soon

| Benchmark | GLM-5.3 | Laguna S 2.1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.2% | 70.2% | GLM-5.3 |
| 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% | 49.7% | GLM-5.3 |
| AutomationBench | 48.2% | Coming soon | Coming soon |
| Agents' Last Exam | 28.5% | Coming soon | Coming soon |
| HLE w/ tools | 62.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 71.5% | Coming soon | Coming soon |

### Coding

- Winner: Not comparable
- GLM-5.3 public-lane score: 56.8 (Supported · #24/142)
- Laguna S 2.1 public-lane score: Coming soon

| Benchmark | GLM-5.3 | Laguna S 2.1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.2% | 70.2% | GLM-5.3 |
| terminalBench3 | 28.3% | Coming soon | Coming soon |
| DeepSWE | 66.9% | 40.4% | GLM-5.3 |
| 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 |
| SWE Multilingual | Coming soon | 78.5% | Coming soon |
| SWE-bench Pro | Coming soon | 59.4% | Coming soon |

### Reasoning

- Winner: Not comparable
- GLM-5.3 public-lane score: 77.1 (#11/27)
- Laguna S 2.1 public-lane score: Coming soon

### Knowledge

- Winner: Not comparable
- GLM-5.3 public-lane score: 61.9 (Supported · #35/168)
- Laguna S 2.1 public-lane score: Coming soon

| Benchmark | GLM-5.3 | Laguna S 2.1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 88.1% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.8% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GLM-5.3 or Laguna S 2.1?

GLM-5.3 is ahead overall on BenchLM right now.

### How many benchmarks does GLM-5.3 cover on BenchLM?

GLM-5.3 currently has 24 sourced benchmark scores on BenchLM.

### How many benchmarks does Laguna S 2.1 cover on BenchLM?

Laguna S 2.1 currently has 6 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GLM-5.3 vs GLM-5.2](/compare/glm-5-2-vs-glm-5-3)
- [Laguna S 2.1 vs GLM-5.2](/compare/glm-5-2-vs-laguna-s-2-1)
- [GLM-5.3 vs GLM-5.3-Flash](/compare/glm-5-3-vs-glm-5-3-flash)
- [Laguna S 2.1 vs GLM-5.3-Flash](/compare/glm-5-3-flash-vs-laguna-s-2-1)

## Explore More

- [GLM-5.3 profile](/models/glm-5-3)
- [Laguna S 2.1 profile](/models/laguna-s-2-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)