Model comparison
Claude 3 Sonnet vs GLM-5.3
GLM-5.3 is the stronger model overall, scoring 54.8 to 29.0 on the Noometry Index.
Last verified . 22 shared benchmarks.
Summary
- They share 22 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and GLM-5.3 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where GLM-5.3 leads 62.3 to 10.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 91.1% for GLM-5.3.
- GLM-5.3 has downloadable open weights; the other is API-only.
Side by side
| Claude 3 Sonnet | GLM-5.3 | |
|---|---|---|
| Provider | Anthropic | Z.ai (Zhipu) |
| Noometry Index | 29.0 | 54.8 |
| Released | 2024-02-29 | 2026-08-14 |
| Weights | Proprietary | Open |
| Context window | — | 1M |
| Max output | — | 131K |
| Input $ / M tokens | — | $1.40 |
| Output $ / M tokens | — | $4.40 |
| Results tracked | 30 | 42 |
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Category by category
Coding GLM-5.3 leads
Claude 3 Sonnet: 29.6 (#302), GLM-5.3: 59.5 (#14)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| WeirdML | 10.2% | 75.4% |
| LMArena Coding | 1223 | 1496 |
| DeepSWE | — | 69% |
| FrontierCode | — | 40.1% |
| CursorBench | — | 42.6% |
| LMArena WebDev | — | 1622 |
| FrontierSWE | — | 30.2% |
| SciCode | — | 59% |
| BigCodeBench Instruct | 42.7% | — |
| BigCodeBench Complete | 53.8% | — |
| ALE-Bench | — | 1,317 |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |
Agentic & Tool Use Not comparable
Claude 3 Sonnet: —, GLM-5.3: 36.4 (#38)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| APEX-Agents | — | 56.6% |
| Vending-Bench 2 | — | 8,164 |
Reasoning GLM-5.3 leads
Claude 3 Sonnet: 20.5 (#237), GLM-5.3: 46.1 (#46)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| LMArena Hard Prompts | 1197 | 1489 |
| DTBench | 53.6% | 87.7% |
| Epoch Capabilities Index | 120.7 | 155.61 |
| NYT Connections (extended) | — | 74.2% |
| CritPt | — | 19.1% |
| Chess Puzzles | — | 21% |
| Mystery Game Puzzles | — | 33% |
| LMCA | — | 55.5% |
| Bench to the Future 3 | — | 0.15 |
| WinoGrande | 75.1% | — |
Math GLM-5.3 leads
Claude 3 Sonnet: 10.7 (#310), GLM-5.3: 62.3 (#33)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 91.1% |
| LMArena Math | 1213 | 1489 |
| FrontierMath (Tiers 1-3) | — | 68.8% |
| FrontierMath Tier 4 | — | 29.3% |
| ProofBench | — | 49% |
| MATH Level 5 | 18.2% | — |
Knowledge GLM-5.3 leads
Claude 3 Sonnet: 21.1 (#276), GLM-5.3: 58.3 (#37)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| GPQA Diamond | 40.6% | 90.9% |
| LMArena Expert | 1173 | 1516 |
| SimpleQA Verified | — | 41% |
| MMLU | 75.9% | — |
Multimodal Not comparable
Claude 3 Sonnet: 25.2 (#125), GLM-5.3: —
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| LMArena Vision | 984 | — |
Multilingual GLM-5.3 leads
Claude 3 Sonnet: 37.8 (#234), GLM-5.3: 55.7 (#28)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| LMArena Non-English | 1205 | 1457 |
| LMArena Chinese | 1189 | 1528 |
| LMArena French | 1229 | 1499 |
| LMArena German | 1204 | 1499 |
| LMArena Japanese | 1131 | 1453 |
| LMArena Korean | 1128 | 1472 |
| LMArena Russian | 1227 | 1463 |
| LMArena Spanish | 1204 | 1460 |
Instruction Following GLM-5.3 leads
Claude 3 Sonnet: 62.8 (#235), GLM-5.3: 77.5 (#23)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| LMArena Instruction Following | 1199 | 1477 |
Long Context GLM-5.3 leads
Claude 3 Sonnet: 36.7 (#228), GLM-5.3: 45.4 (#41)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| LMArena Longer Query | 1211 | 1482 |
Writing & Preference GLM-5.3 leads
Claude 3 Sonnet: 42.1 (#238), GLM-5.3: 75.7 (#6)
| Benchmark | Claude 3 Sonnet | GLM-5.3 |
|---|---|---|
| LMArena Text | 1218 | 1471 |
| LMArena Creative Writing | 1186 | 1457 |
| LMArena Multi-Turn | 1227 | 1472 |
| EQ-Bench Creative Writing | — | 2075 |
Frequently asked questions
Is Claude 3 Sonnet better than GLM-5.3?
GLM-5.3 is the stronger model overall, scoring 54.8 to 29.0 on the Noometry Index.
Is Claude 3 Sonnet or GLM-5.3 better for coding?
GLM-5.3 scores higher on coding benchmarks: 59.5 versus 29.6 in the Noometry coding category.
How many benchmarks do Claude 3 Sonnet and GLM-5.3 share?
22 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and GLM-5.3 has 42.