Model comparison
C4ai Aya Expanse 32b vs o1-mini
C4ai Aya Expanse 32b is the stronger model overall, scoring 35.9 to 34.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
CohereSummary
- They share 17 benchmarks with published results for both. C4ai Aya Expanse 32b scores higher in 1 category and o1-mini in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where C4ai Aya Expanse 32b leads 23.3 to 8.8.
- C4ai Aya Expanse 32b has downloadable open weights; the other is API-only.
Side by side
| C4ai Aya Expanse 32b | o1-mini | |
|---|---|---|
| Provider | Cohere | OpenAI |
| Noometry Index | 35.9 | 34.0 |
| Released | 2024-10-24 | 2024-09-12 |
| Weights | Open | Proprietary |
| Context window | 128K | — |
| Max output | 4K | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 18 | 39 |
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Category by category
Coding Too close to call
C4ai Aya Expanse 32b: 34.8 (#231), o1-mini: 35.5 (#224)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| LMArena Coding | 1197 | 1362 |
| Aider Polyglot | — | 32.9% |
| WeirdML | — | 36.3% |
| LiveBench Coding | — | 48% |
| HumanEval+ | — | 89% |
| MBPP+ | — | 78.8% |
Agentic & Tool Use Not comparable
C4ai Aya Expanse 32b: —, o1-mini: 24.6 (#118)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| Cybench | — | 10% |
Reasoning C4ai Aya Expanse 32b leads
C4ai Aya Expanse 32b: 23.3 (#180), o1-mini: 8.8 (#346)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| LMArena Hard Prompts | 1193 | 1333 |
| ARC-AGI-2 | — | 0.8% |
| SimpleBench | — | 18.1% |
| ARC-AGI-1 | — | 14% |
| LiveBench Reasoning | — | 72.3% |
| LiveBench Data Analysis | — | 57.9% |
| Epoch Capabilities Index | — | 135.82 |
| LiveBench | — | 57.8% |
Math o1-mini leads
C4ai Aya Expanse 32b: 34.0 (#197), o1-mini: 35.4 (#186)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| LMArena Math | 1200 | 1358 |
| OTIS Mock AIME 2024-2025 | — | 46.9% |
| LiveBench Math | — | 62% |
| MATH Level 5 | — | 89.2% |
| FrontierMath (Feb 2025 set) | — | 1.7% |
Knowledge o1-mini leads
C4ai Aya Expanse 32b: 33.2 (#206), o1-mini: 34.9 (#192)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| LMArena Expert | 1182 | 1316 |
| GPQA Diamond | — | 62.4% |
| Confabulations | — | 18.6% |
| Vectara Hallucination Rate | 10.9% | — |
Multilingual o1-mini leads
C4ai Aya Expanse 32b: 38.4 (#230), o1-mini: 43.6 (#182)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| LMArena Non-English | 1213 | 1289 |
| LMArena Chinese | 1211 | 1314 |
| LMArena French | 1248 | 1293 |
| LMArena German | 1199 | 1278 |
| LMArena Japanese | 1163 | 1245 |
| LMArena Korean | 1158 | 1223 |
| LMArena Russian | 1227 | 1283 |
| LMArena Spanish | 1193 | 1303 |
Instruction Following o1-mini leads
C4ai Aya Expanse 32b: 62.6 (#237), o1-mini: 66.7 (#206)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| LMArena Instruction Following | 1196 | 1304 |
| LiveBench Instruction Following | — | 65.4% |
Long Context o1-mini leads
C4ai Aya Expanse 32b: 37.2 (#220), o1-mini: 40.1 (#161)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| LMArena Longer Query | 1228 | 1320 |
Writing & Preference o1-mini leads
C4ai Aya Expanse 32b: 42.2 (#235), o1-mini: 48.4 (#202)
| Benchmark | C4ai Aya Expanse 32b | o1-mini |
|---|---|---|
| LMArena Text | 1224 | 1317 |
| LMArena Creative Writing | 1200 | 1244 |
| LMArena Multi-Turn | 1190 | 1314 |
| Short-Story Creative Writing | — | 64.9% |
| LiveBench Language | — | 40.9% |
Frequently asked questions
Is C4ai Aya Expanse 32b better than o1-mini?
C4ai Aya Expanse 32b is the stronger model overall, scoring 35.9 to 34.0 on the Noometry Index.
Is C4ai Aya Expanse 32b or o1-mini better for coding?
They score almost the same on coding (34.8 vs 35.5); test both on your own repository before choosing.
How many benchmarks do C4ai Aya Expanse 32b and o1-mini share?
17 benchmarks have published results for both models. C4ai Aya Expanse 32b has 18 scored results on Noometry and o1-mini has 39.