Model comparison
Amazon Nova Experimental Chat 10 20 vs Llama 3.1-405B
Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 41.5 to 30.4 on the Noometry Index.
Last verified . 17 shared benchmarks.
MetaSummary
- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 8 categories and Llama 3.1-405B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Amazon Nova Experimental Chat 10 20 leads 36.2 to 17.3.
- Llama 3.1-405B has downloadable open weights; the other is API-only.
Side by side
| Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B | |
|---|---|---|
| Provider | Amazon | Meta |
| Noometry Index | 41.5 | 30.4 |
| Released | — | 2024-07-23 |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 17 | 42 |
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Category by category
Coding Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 41.0 (#123), Llama 3.1-405B: 32.7 (#257)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| LMArena Coding | 1413 | 1291 |
| WeirdML | — | 21.4% |
Agentic & Tool Use Not comparable
Amazon Nova Experimental Chat 10 20: —, Llama 3.1-405B: 20.9 (#131)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| TheAgentCompany | — | 7.4% |
| Cybench | — | 7.5% |
Reasoning Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 27.3 (#110), Llama 3.1-405B: 16.4 (#293)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1270 |
| SimpleBench | — | 23% |
| Kagi LLM Benchmark | — | 45% |
| DTBench | — | 61.4% |
| BIG-Bench Hard | — | 82.9% |
| Epoch Capabilities Index | — | 128.76 |
| ForecastBench | — | 59.9 |
| HellaSwag | — | 89.2% |
| PIQA | — | 85.9% |
| WinoGrande | — | 89.2% |
Math Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 36.2 (#121), Llama 3.1-405B: 17.3 (#283)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| LMArena Math | 1425 | 1281 |
| OTIS Mock AIME 2024-2025 | — | 9.7% |
| Omni-MATH | — | 24.9% |
| MATH Level 5 | — | 49.8% |
Knowledge Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 37.8 (#142), Llama 3.1-405B: 30.4 (#221)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| LMArena Expert | 1385 | 1243 |
| GPQA Diamond | — | 50.9% |
| MMLU-Pro | — | 72.3% |
| Confabulations | — | 17.6% |
| GPQA (HELM) | — | 52.2% |
| ARC (AI2) Challenge | — | 95.3% |
| MMLU | — | 84.5% |
| TriviaQA | — | 82.7% |
Multilingual Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 49.7 (#127), Llama 3.1-405B: 40.9 (#209)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| LMArena Non-English | 1372 | 1248 |
| LMArena Chinese | 1405 | 1242 |
| LMArena French | 1426 | 1278 |
| LMArena German | 1391 | 1252 |
| LMArena Japanese | 1355 | 1208 |
| LMArena Korean | 1327 | 1184 |
| LMArena Russian | 1371 | 1265 |
| LMArena Spanish | 1381 | 1259 |
Instruction Following Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 72.3 (#136), Llama 3.1-405B: 66.1 (#209)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| LMArena Instruction Following | 1365 | 1259 |
| IFEval | — | 81.1% |
Long Context Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 41.7 (#128), Llama 3.1-405B: 38.4 (#192)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| LMArena Longer Query | 1370 | 1266 |
Writing & Preference Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 56.9 (#131), Llama 3.1-405B: 39.1 (#246)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3.1-405B |
|---|---|---|
| LMArena Text | 1394 | 1284 |
| LMArena Creative Writing | 1318 | 1262 |
| LMArena Multi-Turn | 1364 | 1297 |
| EQ-Bench Creative Writing | — | 870 |
| WildBench | — | 78.3% |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than Llama 3.1-405B?
Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 41.5 to 30.4 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 20 or Llama 3.1-405B better for coding?
Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.0 versus 32.7 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and Llama 3.1-405B share?
17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Llama 3.1-405B has 42.