Model comparison
GLM-4.5 vs o1-mini
GLM-4.5 is the stronger model overall, scoring 42.0 to 34.0 on the Noometry Index.
Last verified . 20 shared benchmarks.
Summary
- They share 20 benchmarks with published results for both. GLM-4.5 scores higher in 7 categories and o1-mini in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GLM-4.5 leads 28.6 to 8.8.
- The biggest single-benchmark swing is Short-Story Creative Writing: 73.4% for GLM-4.5 and 64.9% for o1-mini.
- GLM-4.5 has downloadable open weights; the other is API-only.
Side by side
| GLM-4.5 | o1-mini | |
|---|---|---|
| Provider | Z.ai (Zhipu) | OpenAI |
| Noometry Index | 42.0 | 34.0 |
| Released | 2025-07-27 | 2024-09-12 |
| Weights | Open | Proprietary |
| Context window | 131K | — |
| Max output | 98K | — |
| Input $ / M tokens | $0.60 | — |
| Output $ / M tokens | $2.20 | — |
| Results tracked | 27 | 39 |
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Category by category
Coding GLM-4.5 leads
GLM-4.5: 41.4 (#125), o1-mini: 35.5 (#224)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| WeirdML | 40.6% | 36.3% |
| LMArena Coding | 1434 | 1362 |
| SWE-bench Verified (bash only) | 54.2% | — |
| Aider Polyglot | — | 32.9% |
| LiveBench Coding | — | 48% |
| ALE-Bench | 344.82 | — |
| AlgoTune | 1.52 | — |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |
Agentic & Tool Use Not comparable
GLM-4.5: —, o1-mini: 24.6 (#118)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| Cybench | — | 10% |
Reasoning GLM-4.5 leads
GLM-4.5: 28.6 (#100), o1-mini: 8.8 (#346)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| LMArena Hard Prompts | 1429 | 1333 |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 18.1% |
| Kagi LLM Benchmark | 57.9% | — |
| ARC-AGI-1 | — | 14% |
| LiveBench Reasoning | — | 72.3% |
| LiveBench Data Analysis | — | 57.9% |
| Epoch Capabilities Index | — | 135.82 |
| LiveBench | — | 57.8% |
Math GLM-4.5 leads
GLM-4.5: 39.0 (#116), o1-mini: 35.4 (#186)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| LMArena Math | 1427 | 1358 |
| OTIS Mock AIME 2024-2025 | — | 46.9% |
| LiveBench Math | — | 62% |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |
Knowledge GLM-4.5 leads
GLM-4.5: 35.9 (#179), o1-mini: 34.9 (#192)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| Confabulations | 11.3% | 18.6% |
| LMArena Expert | 1433 | 1316 |
| GPQA Diamond | — | 62.4% |
| Humanity's Last Exam | 8.3% | — |
Multilingual GLM-4.5 leads
GLM-4.5: 52.8 (#77), o1-mini: 43.6 (#182)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| LMArena Non-English | 1417 | 1289 |
| LMArena Chinese | 1465 | 1314 |
| LMArena French | 1418 | 1293 |
| LMArena German | 1407 | 1278 |
| LMArena Japanese | 1415 | 1245 |
| LMArena Korean | 1380 | 1223 |
| LMArena Russian | 1414 | 1283 |
| LMArena Spanish | 1454 | 1303 |
Instruction Following GLM-4.5 leads
GLM-4.5: 74.1 (#104), o1-mini: 66.7 (#206)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| LMArena Instruction Following | 1404 | 1304 |
| LiveBench Instruction Following | — | 65.4% |
Long Context o1-mini leads
GLM-4.5: 38.2 (#201), o1-mini: 40.1 (#161)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| LMArena Longer Query | 1412 | 1320 |
| Fiction.LiveBench | 58.3% | — |
Writing & Preference GLM-4.5 leads
GLM-4.5: 57.5 (#127), o1-mini: 48.4 (#202)
| Benchmark | GLM-4.5 | o1-mini |
|---|---|---|
| LMArena Text | 1430 | 1317 |
| LMArena Creative Writing | 1395 | 1244 |
| Short-Story Creative Writing | 73.4% | 64.9% |
| LMArena Multi-Turn | 1415 | 1314 |
| EQ-Bench Creative Writing | 1343 | — |
| LiveBench Language | — | 40.9% |
Frequently asked questions
Is GLM-4.5 better than o1-mini?
GLM-4.5 is the stronger model overall, scoring 42.0 to 34.0 on the Noometry Index.
Is GLM-4.5 or o1-mini better for coding?
GLM-4.5 scores higher on coding benchmarks: 41.4 versus 35.5 in the Noometry coding category.
How many benchmarks do GLM-4.5 and o1-mini share?
20 benchmarks have published results for both models. GLM-4.5 has 27 scored results on Noometry and o1-mini has 39.