Model comparison
C4ai Aya Expanse 8b vs Llama 3.1 Nemotron 51b Instruct
Llama 3.1 Nemotron 51b Instruct is the stronger model overall, scoring 35.9 to 34.9 on the Noometry Index.
Last verified . 12 shared benchmarks.
Cohere
NVIDIASummary
- They share 12 benchmarks with published results for both. C4ai Aya Expanse 8b scores higher in 1 category and Llama 3.1 Nemotron 51b Instruct in 7 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Llama 3.1 Nemotron 51b Instruct leads 43.4 to 39.0.
Side by side
| C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct | |
|---|---|---|
| Provider | Cohere | NVIDIA |
| Noometry Index | 34.9 | 35.9 |
| Released | — | — |
| Weights | Open | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 15 | 12 |
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Category by category
Coding Llama 3.1 Nemotron 51b Instruct leads
C4ai Aya Expanse 8b: 33.8 (#252), Llama 3.1 Nemotron 51b Instruct: 35.6 (#222)
| Benchmark | C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Coding | 1160 | 1223 |
Reasoning Llama 3.1 Nemotron 51b Instruct leads
C4ai Aya Expanse 8b: 22.4 (#197), Llama 3.1 Nemotron 51b Instruct: 23.5 (#177)
| Benchmark | C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1156 | 1203 |
Math Llama 3.1 Nemotron 51b Instruct leads
C4ai Aya Expanse 8b: 33.3 (#203), Llama 3.1 Nemotron 51b Instruct: 34.6 (#193)
| Benchmark | C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Math | 1168 | 1230 |
Knowledge C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 33.6 (#201), Llama 3.1 Nemotron 51b Instruct: 31.9 (#218)
| Benchmark | C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Expert | 1153 | 1167 |
| Vectara Hallucination Rate | 9.5% | — |
Multilingual Too close to call
C4ai Aya Expanse 8b: 36.1 (#242), Llama 3.1 Nemotron 51b Instruct: 36.1 (#241)
| Benchmark | C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Non-English | 1180 | 1181 |
| LMArena Chinese | 1181 | 1180 |
| LMArena Russian | 1197 | 1187 |
| LMArena German | 1188 | — |
| LMArena Japanese | 1120 | — |
Instruction Following Llama 3.1 Nemotron 51b Instruct leads
C4ai Aya Expanse 8b: 60.1 (#253), Llama 3.1 Nemotron 51b Instruct: 62.9 (#233)
| Benchmark | C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Instruction Following | 1155 | 1201 |
Long Context Too close to call
C4ai Aya Expanse 8b: 36.1 (#236), Llama 3.1 Nemotron 51b Instruct: 36.5 (#230)
| Benchmark | C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Longer Query | 1191 | 1205 |
Writing & Preference Llama 3.1 Nemotron 51b Instruct leads
C4ai Aya Expanse 8b: 39.0 (#250), Llama 3.1 Nemotron 51b Instruct: 43.4 (#229)
| Benchmark | C4ai Aya Expanse 8b | Llama 3.1 Nemotron 51b Instruct |
|---|---|---|
| LMArena Text | 1185 | 1228 |
| LMArena Creative Writing | 1168 | 1213 |
| LMArena Multi-Turn | 1160 | 1227 |
Frequently asked questions
Is C4ai Aya Expanse 8b better than Llama 3.1 Nemotron 51b Instruct?
Llama 3.1 Nemotron 51b Instruct is the stronger model overall, scoring 35.9 to 34.9 on the Noometry Index.
Is C4ai Aya Expanse 8b or Llama 3.1 Nemotron 51b Instruct better for coding?
Llama 3.1 Nemotron 51b Instruct scores higher on coding benchmarks: 35.6 versus 33.8 in the Noometry coding category.
How many benchmarks do C4ai Aya Expanse 8b and Llama 3.1 Nemotron 51b Instruct share?
12 benchmarks have published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and Llama 3.1 Nemotron 51b Instruct has 12.