Model comparison
C4ai Aya Expanse 8b vs Command R
C4ai Aya Expanse 8b is the stronger model overall, scoring 34.3 to 31.0 on the Noometry Index.
Last verified . 14 shared benchmarks.
CohereSummary
- They share 14 benchmarks with published results for both. C4ai Aya Expanse 8b scores higher in 7 categories and Command R in 1 category; 5 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where C4ai Aya Expanse 8b leads 21.4 to 13.3.
- Command R accepts more context: 128K tokens versus 8K.
Side by side
| C4ai Aya Expanse 8b | Command R | |
|---|---|---|
| Provider | Cohere | Cohere |
| Noometry Index | 34.3 | 31.0 |
| Released | 2024-10-24 | 2024-08-30 |
| Weights | Open | Open |
| Context window | 8K | 128K |
| Max output | 4K | 4K |
| Input $ / M tokens | — | $0.15 |
| Output $ / M tokens | — | $0.60 |
| Results tracked | 15 | 29 |
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Category by category
Coding C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 33.2 (#252), Command R: 28.8 (#301)
| Benchmark | C4ai Aya Expanse 8b | Command R |
|---|---|---|
| LMArena Coding | 1161 | 1170 |
| BigCodeBench Instruct | — | 37.1% |
| LiveBench Coding | — | 17.9% |
| BigCodeBench Complete | — | 45.2% |
Reasoning C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 21.4 (#198), Command R: 13.3 (#329)
| Benchmark | C4ai Aya Expanse 8b | Command R |
|---|---|---|
| LMArena Hard Prompts | 1156 | 1164 |
| LiveBench Reasoning | — | 21.9% |
| DTBench | — | 46.4% |
| LiveBench Data Analysis | — | 33.3% |
| LMCA | — | 9.2% |
| LiveBench | — | 27.5% |
Math C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 30.8 (#204), Command R: 25.8 (#244)
| Benchmark | C4ai Aya Expanse 8b | Command R |
|---|---|---|
| LMArena Math | 1168 | 1155 |
| LiveBench Math | — | 19.4% |
Knowledge C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 33.0 (#197), Command R: 30.5 (#219)
| Benchmark | C4ai Aya Expanse 8b | Command R |
|---|---|---|
| LMArena Expert | 1153 | 1138 |
| Vectara Hallucination Rate | 9.5% | — |
| MMLU | — | 65.2% |
Multilingual Too close to call
C4ai Aya Expanse 8b: 36.3 (#237), Command R: 35.9 (#240)
| Benchmark | C4ai Aya Expanse 8b | Command R |
|---|---|---|
| LMArena Non-English | 1180 | 1174 |
| LMArena Chinese | 1181 | 1182 |
| LMArena German | 1188 | 1176 |
| LMArena Japanese | 1120 | 1143 |
| LMArena Russian | 1197 | 1174 |
| LMArena French | — | 1161 |
| LMArena Korean | — | 1162 |
| LMArena Spanish | — | 1150 |
Instruction Following C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 60.4 (#248), Command R: 58.3 (#256)
| Benchmark | C4ai Aya Expanse 8b | Command R |
|---|---|---|
| LMArena Instruction Following | 1155 | 1167 |
| LiveBench Instruction Following | — | 55.6% |
Long Context Too close to call
C4ai Aya Expanse 8b: 36.1 (#231), Command R: 36.3 (#226)
| Benchmark | C4ai Aya Expanse 8b | Command R |
|---|---|---|
| LMArena Longer Query | 1192 | 1198 |
Writing & Preference Too close to call
C4ai Aya Expanse 8b: 39.2 (#245), Command R: 38.4 (#248)
| Benchmark | C4ai Aya Expanse 8b | Command R |
|---|---|---|
| LMArena Text | 1185 | 1187 |
| LMArena Creative Writing | 1168 | 1170 |
| LMArena Multi-Turn | 1160 | 1163 |
| LiveBench Language | — | 16.7% |
Frequently asked questions
Is C4ai Aya Expanse 8b better than Command R?
C4ai Aya Expanse 8b is the stronger model overall, scoring 34.3 to 31.0 on the Noometry Index.
Is C4ai Aya Expanse 8b or Command R better for coding?
C4ai Aya Expanse 8b scores higher on coding benchmarks: 33.2 versus 28.8 in the Noometry coding category.
Which has the bigger context window?
Command R does, with 128K tokens against 8K.
How many benchmarks do C4ai Aya Expanse 8b and Command R share?
14 benchmarks have published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and Command R has 29.