# Claude Sonnet 4.6 vs GLM-5.2

> Side-by-side benchmark comparison for Claude Sonnet 4.6 and GLM-5.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-sonnet-4-6-vs-glm-5-2
- Last updated: September 14, 2026

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

## Quick Verdict

Pick GLM-5.2 if you want the stronger benchmark profile. Claude Sonnet 4.6 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GLM-5.2 leads overall 68.19 to 63.03.
- The clearest category separation is in instruction following, where the averages are 48.2 for Claude Sonnet 4.6 and 89.8 for GLM-5.2.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 59.1% and 81%.
- GLM-5.2 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GLM-5.2 also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Sonnet 4.6 | GLM-5.2 |
|----------|----------|----------|
| Creator | Anthropic | Z.AI |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 1M |
| Overall Score | 63.03 | 68.19 |
| Benchmarks Covered | 26 | 25 |
| Pricing (input/output) | $3.00 / $15.00 | $1.40 / $4.40 |

## Category Breakdown

### Agentic

- Winner: GLM-5.2
- Claude Sonnet 4.6 public-lane score: 44 (Supported · #93/153)
- GLM-5.2 public-lane score: 58.5 (Supported · #29/153)

| Benchmark | Claude Sonnet 4.6 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 59.1% | 81% | GLM-5.2 |
| OSWorld-Verified | 72.1% | Coming soon | Coming soon |
| Claw-Eval | 67.8% | Coming soon | Coming soon |
| CyberGym | 65.2% | Coming soon | Coming soon |
| Gert Labs | 62.92% | Coming soon | Coming soon |
| OSWorld 2.0 | 8.3% | Coming soon | Coming soon |
| JobBench | 36.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 57.3% | 67.8% | GLM-5.2 |
| ApprenticeBench | 2% | Coming soon | Coming soon |
| Terminal-Bench 3.0 | Coming soon | 4.6% | 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: GLM-5.2
- Claude Sonnet 4.6 public-lane score: 52.2 (Supported · #48/152)
- GLM-5.2 public-lane score: 61 (Supported · #19/152)

| Benchmark | Claude Sonnet 4.6 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 79.6% | Coming soon | Coming soon |
| SWE-Rebench | 60.7% | Coming soon | Coming soon |
| React Native Evals | 80.6% | Coming soon | Coming soon |
| Vibe Code Bench | 51.48% | Coming soon | Coming soon |
| cursorBench31 | 48.8% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 24.3% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 82.1% | 69.5% | Claude Sonnet 4.6 |
| SWE-bench (Vals) | 77.4% | 82.8% | GLM-5.2 |
| SWE-bench Pro | Coming soon | 62.1% | Coming soon |
| NL2Repo | Coming soon | 48.9% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 81.0% | Coming soon |
| ProgramBench | Coming soon | 63.7% | Coming soon |
| cursorBench32 | Coming soon | 55.0% | Coming soon |
| OpenHarmony Bench | Coming soon | 58.4% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 54.1 (#33/48)
- GLM-5.2 public-lane score: Coming soon

| Benchmark | Claude Sonnet 4.6 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 77.4% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 67.9 (Unranked · 2 rankable rows)
- GLM-5.2 public-lane score: 74.8 (Unranked · 2 rankable rows)

| Benchmark | Claude Sonnet 4.6 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 20.9% | Coming soon |

### Knowledge

- Winner: GLM-5.2
- Claude Sonnet 4.6 public-lane score: 55.8 (Supported · #51/183)
- GLM-5.2 public-lane score: 60.7 (Supported · #35/183)

| Benchmark | Claude Sonnet 4.6 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 89.9% | 91.2% | GLM-5.2 |
| SuperGPQA | 95% | Coming soon | Coming soon |
| MMLU-Pro | 79.2% | Coming soon | Coming soon |
| HLE | 49% | 54.7% | GLM-5.2 |
| GPQA Diamond (Vals) | 85.6% | 85.6% | Tie |
| MMLU-Pro (Vals) | 87.3% | 86.7% | Claude Sonnet 4.6 |
| GPQA-D | Coming soon | 91.2% | Coming soon |
| HLE w/o tools | Coming soon | 40.5% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 48.2 (#86/123)
- GLM-5.2 public-lane score: 89.8 (#22/123)

### Mathematics

- Winner: Coming soon
- Claude Sonnet 4.6 public-lane score: 49 (Unranked · 2 rankable rows)
- GLM-5.2 public-lane score: 80.7 (Unranked · 4 rankable rows)

| Benchmark | Claude Sonnet 4.6 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 32.400% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 8.300% | Coming soon | Coming soon |
| 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 4.6 or GLM-5.2?

GLM-5.2 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Sonnet 4.6 and GLM-5.2?

The widest category gap is in instruction following, where the averages are 48.2 for Claude Sonnet 4.6 and 89.8 for GLM-5.2.

### How many benchmarks does Claude Sonnet 4.6 cover on BenchLM?

Claude Sonnet 4.6 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 4.6 vs GLM-5.3](/compare/claude-sonnet-4-6-vs-glm-5-3)
- [GLM-5.2 vs GLM-5.3](/compare/glm-5-2-vs-glm-5-3)
- [Claude Sonnet 4.6 vs GLM-5.3-Flash](/compare/claude-sonnet-4-6-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 4.6 profile](/models/claude-sonnet-4-6)
- [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)