# Amazon Nova Experimental Chat 10 20 vs DeepSeek-V2.5 (Sep 2024)

> Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 41.5 to 37.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-20-vs-deepseek-v2-5
- Last updated: 2026-10-10
- 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 DeepSeek-V2.5 (Sep 2024) in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in coding, where Amazon Nova Experimental Chat 10 20 leads 41.0 to 31.3.
- DeepSeek-V2.5 (Sep 2024) has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| Provider | Amazon | DeepSeek |
| Noometry Index | 41.5 | 37.0 |
| Rank | 122 | 197 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 20: 41.0 (#123)
- DeepSeek-V2.5 (Sep 2024): 31.3 (#274)

| Benchmark | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| LMArena Coding | 1413 | 1310 |
| Aider Polyglot | — | 17.8% |
| BigCodeBench Instruct | — | 48.6% |
| BigCodeBench Complete | — | 53.2% |
| HumanEval+ | — | 83.5% |
| MBPP+ | — | 74.1% |

## Reasoning

- Amazon Nova Experimental Chat 10 20: 27.3 (#110)
- DeepSeek-V2.5 (Sep 2024): 24.5 (#145)

| Benchmark | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| LMArena Hard Prompts | 1396 | 1289 |

## Math

- Amazon Nova Experimental Chat 10 20: 36.2 (#121)
- DeepSeek-V2.5 (Sep 2024): 33.3 (#177)

| Benchmark | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| LMArena Math | 1425 | 1289 |

## Knowledge

- Amazon Nova Experimental Chat 10 20: 37.8 (#142)
- DeepSeek-V2.5 (Sep 2024): 34.2 (#190)

| Benchmark | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| LMArena Expert | 1385 | 1266 |

## Multilingual

- Amazon Nova Experimental Chat 10 20: 49.7 (#127)
- DeepSeek-V2.5 (Sep 2024): 42.7 (#188)

| Benchmark | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| LMArena Non-English | 1372 | 1273 |
| LMArena Chinese | 1405 | 1317 |
| LMArena French | 1426 | 1288 |
| LMArena German | 1391 | 1258 |
| LMArena Japanese | 1355 | 1228 |
| LMArena Korean | 1327 | 1209 |
| LMArena Russian | 1371 | 1289 |
| LMArena Spanish | 1381 | 1248 |

## Instruction Following

- Amazon Nova Experimental Chat 10 20: 72.3 (#136)
- DeepSeek-V2.5 (Sep 2024): 67.7 (#189)

| Benchmark | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| LMArena Instruction Following | 1365 | 1280 |

## Long Context

- Amazon Nova Experimental Chat 10 20: 41.7 (#128)
- DeepSeek-V2.5 (Sep 2024): 39.5 (#169)

| Benchmark | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| LMArena Longer Query | 1370 | 1301 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 20: 56.9 (#131)
- DeepSeek-V2.5 (Sep 2024): 50.0 (#182)

| Benchmark | Amazon Nova Experimental Chat 10 20 | DeepSeek-V2.5 (Sep 2024) |
|---|---|---|
| LMArena Text | 1394 | 1294 |
| LMArena Creative Writing | 1318 | 1285 |
| LMArena Multi-Turn | 1364 | 1297 |

## FAQ

### Is Amazon Nova Experimental Chat 10 20 better than DeepSeek-V2.5 (Sep 2024)?

Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 41.5 to 37.0 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 20 or DeepSeek-V2.5 (Sep 2024) better for coding?

Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.0 versus 31.3 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 20 and DeepSeek-V2.5 (Sep 2024) share?

17 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and DeepSeek-V2.5 (Sep 2024) has 22.