Model comparison
C4ai Aya Expanse 8b vs Yi-34B
C4ai Aya Expanse 8b is the stronger model overall, scoring 34.9 to 27.8 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 8 categories and Yi-34B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where C4ai Aya Expanse 8b leads 33.6 to 7.5.
Side by side
| C4ai Aya Expanse 8b | Yi-34B | |
|---|---|---|
| Provider | Cohere | 01.AI |
| Noometry Index | 34.9 | 27.8 |
| Released | — | 2023-11-02 |
| Weights | Open | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 15 | 23 |
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Category by category
Coding C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 33.8 (#252), Yi-34B: 32.3 (#274)
| Benchmark | C4ai Aya Expanse 8b | Yi-34B |
|---|---|---|
| LMArena Coding | 1160 | 1112 |
Reasoning C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 22.4 (#197), Yi-34B: 21.2 (#226)
| Benchmark | C4ai Aya Expanse 8b | Yi-34B |
|---|---|---|
| LMArena Hard Prompts | 1156 | 1104 |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.39 |
Math C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 33.3 (#203), Yi-34B: 21.6 (#282)
| Benchmark | C4ai Aya Expanse 8b | Yi-34B |
|---|---|---|
| LMArena Math | 1168 | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |
Knowledge C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 33.6 (#201), Yi-34B: 7.5 (#309)
| Benchmark | C4ai Aya Expanse 8b | Yi-34B |
|---|---|---|
| LMArena Expert | 1153 | 1061 |
| GPQA Diamond | — | 14.7% |
| Vectara Hallucination Rate | 9.5% | — |
| MMLU | — | 76.3% |
Multilingual C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 36.1 (#242), Yi-34B: 29.7 (#264)
| Benchmark | C4ai Aya Expanse 8b | Yi-34B |
|---|---|---|
| LMArena Non-English | 1180 | 1079 |
| LMArena Chinese | 1181 | 1176 |
| LMArena German | 1188 | 1042 |
| LMArena Japanese | 1120 | 993 |
| LMArena Russian | 1197 | 1050 |
| LMArena French | — | 1081 |
| LMArena Korean | — | 959 |
| LMArena Spanish | — | 1070 |
Instruction Following C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 60.1 (#253), Yi-34B: 56.2 (#274)
| Benchmark | C4ai Aya Expanse 8b | Yi-34B |
|---|---|---|
| LMArena Instruction Following | 1155 | 1091 |
Long Context C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 36.1 (#236), Yi-34B: 33.2 (#264)
| Benchmark | C4ai Aya Expanse 8b | Yi-34B |
|---|---|---|
| LMArena Longer Query | 1191 | 1094 |
Writing & Preference C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 39.0 (#250), Yi-34B: 34.1 (#273)
| Benchmark | C4ai Aya Expanse 8b | Yi-34B |
|---|---|---|
| LMArena Text | 1185 | 1129 |
| LMArena Creative Writing | 1168 | 1108 |
| LMArena Multi-Turn | 1160 | 1113 |
Frequently asked questions
Is C4ai Aya Expanse 8b better than Yi-34B?
C4ai Aya Expanse 8b is the stronger model overall, scoring 34.9 to 27.8 on the Noometry Index.
Is C4ai Aya Expanse 8b or Yi-34B better for coding?
C4ai Aya Expanse 8b scores higher on coding benchmarks: 33.8 versus 32.3 in the Noometry coding category.
How many benchmarks do C4ai Aya Expanse 8b and Yi-34B share?
14 benchmarks have published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and Yi-34B has 23.