# Claude Sonnet 5 vs GLM-5.2

> Side-by-side benchmark comparison for Claude Sonnet 5 and GLM-5.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-sonnet-5-vs-glm-5-2
- Last updated: September 29, 2026

- Shared sourced benchmarks: 12
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Claude Sonnet 5 if you want the stronger benchmark profile. GLM-5.2 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Sonnet 5 leads overall 66.99 to 62.63.
- The clearest category separation is in agentic, where the averages are 64.6 for Claude Sonnet 5 and 55.9 for GLM-5.2.
- The biggest single benchmark swing is LiveCodeBench (Vals) in Coding, with scores of 82.4% and 69.5%.
- GLM-5.2 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Claude Sonnet 5 | GLM-5.2 |
|----------|----------|----------|
| Creator | Anthropic | Z.AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 66.99 | 62.63 |
| Benchmarks Covered | 26 | 25 |
| Pricing (input/output) | $2.00 / $10.00 | $1.40 / $4.40 |

## Category Breakdown

### Agentic

- Winner: Claude Sonnet 5
- Claude Sonnet 5 public-lane score: 64.6 (Supported · #12/117)
- GLM-5.2 public-lane score: 55.9 (Supported · #30/117)

| Benchmark | Claude Sonnet 5 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 14.6% | 4.6% | Claude Sonnet 5 |
| Terminal-Bench 2.1 | 80.4% | 81.0% | GLM-5.2 |
| BrowseComp | 84.7% | Coming soon | Coming soon |
| HLE w/ tools | 57.4% | Coming soon | Coming soon |
| OSWorld-Verified | 81.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 74.5% | 67.8% | Claude Sonnet 5 |
| ApprenticeBench | 16% | Coming soon | Coming soon |
| MCP Atlas | Coming soon | 76.8% | Coming soon |
| Toolathlon | Coming soon | 48.2% | Coming soon |
| ResearchClawBench | Coming soon | 20.7% | Coming soon |

### Coding

- Winner: Claude Sonnet 5
- Claude Sonnet 5 public-lane score: 59.8 (Supported · #19/142)
- GLM-5.2 public-lane score: 56.1 (Supported · #25/142)

| Benchmark | Claude Sonnet 5 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 85.2% | Coming soon | Coming soon |
| SWE-bench Pro | 63.2% | 62.1% | Claude Sonnet 5 |
| SWE Multilingual | 78.3% | Coming soon | Coming soon |
| SWE Multimodal | 28.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 80.4% | 81.0% | GLM-5.2 |
| FrontierCode 1.1 Main | 42.7% | Coming soon | Coming soon |
| cursorBench32 | 61.5% | 55.0% | Claude Sonnet 5 |
| VulcanBench CII v1 | 89.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 82.4% | 69.5% | Claude Sonnet 5 |
| SWE-bench (Vals) | 79.6% | 82.8% | GLM-5.2 |
| cursorBench40 | 34.1% | Coming soon | Coming soon |
| NL2Repo | Coming soon | 48.9% | Coming soon |
| ProgramBench | Coming soon | 63.7% | Coming soon |
| OpenHarmony Bench | Coming soon | 58.4% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Sonnet 5 public-lane score: 78.7 (Unranked · 2 rankable rows)
- GLM-5.2 public-lane score: 76.1 (Unranked · 2 rankable rows)

| Benchmark | Claude Sonnet 5 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 20.9% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Sonnet 5 public-lane score: 78.4 (#15/50)
- GLM-5.2 public-lane score: Coming soon

| Benchmark | Claude Sonnet 5 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 88.3% | Coming soon | Coming soon |
| CharXiv w/o tools | 77% | Coming soon | Coming soon |

### Knowledge

- Winner: Claude Sonnet 5
- Claude Sonnet 5 public-lane score: 64.5 (Supported · #26/168)
- GLM-5.2 public-lane score: 57.2 (Supported · #45/168)

| Benchmark | Claude Sonnet 5 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| HLE | 57.4% | 54.7% | Claude Sonnet 5 |
| HLE w/o tools | 43.2% | 40.5% | Claude Sonnet 5 |
| HLE-Verified | 31.0% | Coming soon | Coming soon |
| LABBench2 | 80.1% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 88.9% | 85.6% | Claude Sonnet 5 |
| MMLU-Pro (Vals) | 87.5% | 86.7% | Claude Sonnet 5 |
| GPQA | Coming soon | 91.2% | Coming soon |
| GPQA-D | Coming soon | 91.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Claude Sonnet 5 public-lane score: Coming soon
- GLM-5.2 public-lane score: 88.5 (#23/124)

### Mathematics

- Winner: Not comparable
- Claude Sonnet 5 public-lane score: Coming soon
- GLM-5.2 public-lane score: 80.7 (Unranked · 4 rankable rows)

| Benchmark | Claude Sonnet 5 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 99.2% | Coming soon |
| HMMT Nov 2025 | Coming soon | 94.4% | Coming soon |
| HMMT Feb 2026 | Coming soon | 92.5% | Coming soon |
| MMAnswerBench | Coming soon | 91.0% | Coming soon |

## FAQ

### Which is better overall, Claude Sonnet 5 or GLM-5.2?

Claude Sonnet 5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Sonnet 5 and GLM-5.2?

The widest category gap is in agentic, where the averages are 64.6 for Claude Sonnet 5 and 55.9 for GLM-5.2.

### How many benchmarks does Claude Sonnet 5 cover on BenchLM?

Claude Sonnet 5 currently has 26 sourced benchmark scores on BenchLM.

### How many benchmarks does GLM-5.2 cover on BenchLM?

GLM-5.2 currently has 25 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Sonnet 5 vs GLM-5.3](/compare/claude-sonnet-5-vs-glm-5-3)
- [GLM-5.2 vs GLM-5.3](/compare/glm-5-2-vs-glm-5-3)
- [Claude Sonnet 5 vs GLM-5.3-Flash](/compare/claude-sonnet-5-vs-glm-5-3-flash)
- [GLM-5.2 vs GLM-5.3-Flash](/compare/glm-5-2-vs-glm-5-3-flash)

## Explore More

- [Claude Sonnet 5 profile](/models/claude-sonnet-5)
- [GLM-5.2 profile](/models/glm-5-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)