# Amazon Nova Experimental Chat 10 20 vs Llama 3-8B

> Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 25.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-llama-3-8b
- Last updated: 2026-10-12
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Amazon Nova Experimental Chat 10 20 scores higher in 8 categories and Llama 3-8B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Amazon Nova Experimental Chat 10 20 leads 38.5 to 7.8.
- Llama 3-8B has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| Provider | Amazon | Meta |
| Noometry Index | 42.1 | 25.5 |
| Rank | 118 | 344 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.6 (#123)
- Llama 3-8B: 31.0 (#289)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| LMArena Coding | 1412 | 1152 |
| BigCodeBench Instruct | — | 31.9% |
| BigCodeBench Complete | — | 36.9% |
| HumanEval+ | — | 56.7% |
| MBPP+ | — | 54.8% |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 28.4 (#106)
- Llama 3-8B: 14.3 (#326)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1133 |
| Chess Puzzles | — | 0% |
| DTBench | — | 43.9% |
| Adversarial NLI | — | 57.3% |
| Epoch Capabilities Index | — | 116.45 |
| ForecastBench | — | 58.6 |
| WinoGrande | — | 75.7% |

## Math

- Amazon Nova Experimental Chat 10 20: 39.0 (#119)
- Llama 3-8B: 8.8 (#323)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| LMArena Math | 1425 | 1151 |
| OTIS Mock AIME 2024-2025 | — | 1.9% |
| MATH Level 5 | — | 6.1% |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 38.5 (#144)
- Llama 3-8B: 7.8 (#308)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| LMArena Expert | 1386 | 1113 |
| GPQA Diamond | — | 26.1% |
| ARC (AI2) Challenge | — | 82.8% |
| MMLU | — | 68.8% |
| OpenBookQA | — | 82.6% |
| TriviaQA | — | 67.7% |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.5 (#131)
- Llama 3-8B: 30.8 (#261)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| LMArena Non-English | 1372 | 1098 |
| LMArena Chinese | 1404 | 1076 |
| LMArena French | 1425 | 1159 |
| LMArena German | 1391 | 1104 |
| LMArena Japanese | 1360 | 967 |
| LMArena Korean | 1324 | 1004 |
| LMArena Russian | 1371 | 1109 |
| LMArena Spanish | 1382 | 1173 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.1 (#141)
- Llama 3-8B: 58.4 (#260)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| LMArena Instruction Following | 1365 | 1127 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#133)
- Llama 3-8B: 34.2 (#251)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| LMArena Longer Query | 1370 | 1128 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.6 (#136)
- Llama 3-8B: 37.5 (#256)

| Benchmark | Amazon Nova Experimental Chat 10 20 | Llama 3-8B |
|---|---|---|
| LMArena Text | 1394 | 1166 |
| LMArena Creative Writing | 1318 | 1150 |
| LMArena Multi-Turn | 1364 | 1152 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than Llama 3-8B?

Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 25.5 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or Llama 3-8B better for coding?

Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.6 versus 31.0 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and Llama 3-8B share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Llama 3-8B has 34.