# Claude 3 Sonnet vs GLM-5.1

> GLM-5.1 is the stronger model overall, scoring 47.8 to 29.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-sonnet-vs-glm-5-1
- Last updated: 2026-10-10
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and GLM-5.1 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where GLM-5.1 leads 49.7 to 10.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 93.3% for GLM-5.1.
- GLM-5.1 has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| Provider | Anthropic | Z.ai (Zhipu) |
| Noometry Index | 29.0 | 47.8 |
| Rank | 319 | 59 |
| Context | — | 200K |
| Input $/M | — | $1.40 |
| Output $/M | — | $4.40 |
| Weights | Proprietary | Open |

## Coding

- Claude 3 Sonnet: 29.6 (#302)
- GLM-5.1: 48.7 (#55)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| WeirdML | 10.2% | 57.1% |
| LMArena Coding | 1223 | 1485 |
| SWE-bench Verified | — | 74.2% |
| LMArena WebDev | — | 1508 |
| SciCode | — | 43.8% |
| BigCodeBench Instruct | 42.7% | — |
| BigCodeBench Complete | 53.8% | — |
| ALE-Bench | — | 887.1 |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |

## Agentic & Tool Use

- Claude 3 Sonnet: —
- GLM-5.1: 24.9 (#113)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| APEX-Agents | — | 40.9% |
| ExploitBench | — | 18.1% |
| GBAEval | — | 0% |
| Vending-Bench 2 | — | 5,634 |

## Reasoning

- Claude 3 Sonnet: 20.5 (#237)
- GLM-5.1: 39.1 (#60)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| LMArena Hard Prompts | 1197 | 1472 |
| Epoch Capabilities Index | 120.7 | 149.84 |
| SimpleBench | — | 55.1% |
| NYT Connections (extended) | — | 77.7% |
| CritPt | — | 4.6% |
| Chess Puzzles | — | 19% |
| Thematic Generalization | — | 69.8% |
| DTBench | 53.6% | — |
| WinoGrande | 75.1% | — |

## Math

- Claude 3 Sonnet: 10.7 (#310)
- GLM-5.1: 49.7 (#60)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 93.3% |
| LMArena Math | 1213 | 1473 |
| FrontierMath (Tiers 1-3) | — | 36.8% |
| MathArena Final-Answer Competitions | — | 67.1% |
| ProofBench | — | 22.2% |
| MATH Level 5 | 18.2% | — |
| FrontierMath (Feb 2025 set) | — | 33.4% |
| FrontierMath Tier 4 (v1) | — | 12.5% |

## Knowledge

- Claude 3 Sonnet: 21.1 (#276)
- GLM-5.1: 54.9 (#50)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| GPQA Diamond | 40.6% | 89.9% |
| LMArena Expert | 1173 | 1476 |
| SimpleQA Verified | — | 34% |
| MMLU | 75.9% | — |

## Multimodal

- Claude 3 Sonnet: 25.2 (#125)
- GLM-5.1: —

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| LMArena Vision | 984 | — |

## Multilingual

- Claude 3 Sonnet: 37.8 (#234)
- GLM-5.1: 55.0 (#36)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| LMArena Non-English | 1205 | 1447 |
| LMArena Chinese | 1189 | 1515 |
| LMArena French | 1229 | 1474 |
| LMArena German | 1204 | 1465 |
| LMArena Japanese | 1131 | 1434 |
| LMArena Korean | 1128 | 1418 |
| LMArena Russian | 1227 | 1454 |
| LMArena Spanish | 1204 | 1469 |

## Instruction Following

- Claude 3 Sonnet: 62.8 (#235)
- GLM-5.1: 76.3 (#42)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| LMArena Instruction Following | 1199 | 1451 |

## Long Context

- Claude 3 Sonnet: 36.7 (#228)
- GLM-5.1: 44.9 (#53)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| LMArena Longer Query | 1211 | 1466 |

## Writing & Preference

- Claude 3 Sonnet: 42.1 (#238)
- GLM-5.1: 66.9 (#31)

| Benchmark | Claude 3 Sonnet | GLM-5.1 |
|---|---|---|
| LMArena Text | 1218 | 1461 |
| LMArena Creative Writing | 1186 | 1453 |
| LMArena Multi-Turn | 1227 | 1472 |
| EQ-Bench Creative Writing | — | 1592 |

## FAQ

### Is Claude 3 Sonnet better than GLM-5.1?

GLM-5.1 is the stronger model overall, scoring 47.8 to 29.0 on the Noometry Index.

### Is Claude 3 Sonnet or GLM-5.1 better for coding?

GLM-5.1 scores higher on coding benchmarks: 48.7 versus 29.6 in the Noometry coding category.

### How many benchmarks do Claude 3 Sonnet and GLM-5.1 share?

21 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and GLM-5.1 has 41.