Model comparison
C4ai Aya Expanse 8b vs o1-pro
C4ai Aya Expanse 8b is the stronger model overall, scoring 34.9 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
CohereSummary
- The widest gap is in knowledge, where C4ai Aya Expanse 8b leads 33.6 to 29.7.
- C4ai Aya Expanse 8b has downloadable open weights; the other is API-only.
Side by side
| C4ai Aya Expanse 8b | o1-pro | |
|---|---|---|
| Provider | Cohere | OpenAI |
| Noometry Index | 34.9 | 31.5 |
| Released | — | 2025-03-19 |
| Weights | Open | Proprietary |
| Context window | — | 200K |
| Max output | — | 100K |
| Input $ / M tokens | — | $150 |
| Output $ / M tokens | — | $600 |
| Results tracked | 15 | 3 |
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Category by category
Coding Not comparable
C4ai Aya Expanse 8b: 33.8 (#252), o1-pro: —
| Benchmark | C4ai Aya Expanse 8b | o1-pro |
|---|---|---|
| LMArena Coding | 1160 | — |
Reasoning C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 22.4 (#197), o1-pro: 20.4 (#239)
| Benchmark | C4ai Aya Expanse 8b | o1-pro |
|---|---|---|
| ARC-AGI-1 | — | 23.3% |
| EnigmaEval | — | 6.1% |
| LMArena Hard Prompts | 1156 | — |
Math Not comparable
C4ai Aya Expanse 8b: 33.3 (#203), o1-pro: —
| Benchmark | C4ai Aya Expanse 8b | o1-pro |
|---|---|---|
| LMArena Math | 1168 | — |
Knowledge C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 33.6 (#201), o1-pro: 29.7 (#234)
| Benchmark | C4ai Aya Expanse 8b | o1-pro |
|---|---|---|
| Humanity's Last Exam | — | 8.1% |
| Vectara Hallucination Rate | 9.5% | — |
| LMArena Expert | 1153 | — |
Multilingual Not comparable
C4ai Aya Expanse 8b: 36.1 (#242), o1-pro: —
| Benchmark | C4ai Aya Expanse 8b | o1-pro |
|---|---|---|
| LMArena Non-English | 1180 | — |
| LMArena Chinese | 1181 | — |
| LMArena German | 1188 | — |
| LMArena Japanese | 1120 | — |
| LMArena Russian | 1197 | — |
Instruction Following Not comparable
C4ai Aya Expanse 8b: 60.1 (#253), o1-pro: —
| Benchmark | C4ai Aya Expanse 8b | o1-pro |
|---|---|---|
| LMArena Instruction Following | 1155 | — |
Long Context Not comparable
C4ai Aya Expanse 8b: 36.1 (#236), o1-pro: —
| Benchmark | C4ai Aya Expanse 8b | o1-pro |
|---|---|---|
| LMArena Longer Query | 1191 | — |
Writing & Preference Not comparable
C4ai Aya Expanse 8b: 39.0 (#250), o1-pro: —
| Benchmark | C4ai Aya Expanse 8b | o1-pro |
|---|---|---|
| LMArena Text | 1185 | — |
| LMArena Creative Writing | 1168 | — |
| LMArena Multi-Turn | 1160 | — |
Frequently asked questions
Is C4ai Aya Expanse 8b better than o1-pro?
C4ai Aya Expanse 8b is the stronger model overall, scoring 34.9 to 31.5 on the Noometry Index.
How many benchmarks do C4ai Aya Expanse 8b and o1-pro share?
0 benchmarks have published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and o1-pro has 3.