# Amazon Nova Experimental Chat 12 10 vs Command R+

> Amazon Nova Experimental Chat 12 10 is the stronger model overall, scoring 42.9 to 32.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-12-10-vs-command-r-plus
- Last updated: 2026-10-11
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. Amazon Nova Experimental Chat 12 10 scores higher in 8 categories and Command R+ in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Amazon Nova Experimental Chat 12 10 leads 29.3 to 9.2.
- Command R+ has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| Provider | Amazon | Cohere |
| Noometry Index | 42.9 | 32.4 |
| Rank | 104 | 257 |
| Context | — | 128K |
| Input $/M | — | $2.50 |
| Output $/M | — | $10 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 12 10: 42.2 (#110)
- Command R+: 29.1 (#309)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| LMArena Coding | 1430 | 1187 |
| BigCodeBench Instruct | — | 33.8% |
| LiveBench Coding | — | 19.1% |
| BigCodeBench Complete | — | 41.9% |
| HumanEval+ | — | 56.7% |
| MBPP+ | — | 63.5% |

## Reasoning

- Amazon Nova Experimental Chat 12 10: 29.3 (#94)
- Command R+: 9.2 (#344)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| LMArena Hard Prompts | 1427 | 1186 |
| SimpleBench | — | 17.4% |
| LiveBench Reasoning | — | 24.8% |
| DTBench | — | 54.9% |
| LiveBench Data Analysis | — | 38.1% |
| LMCA | — | 5% |
| Epoch Capabilities Index | — | 119.34 |
| LiveBench | — | 31.8% |

## Math

- Amazon Nova Experimental Chat 12 10: 38.9 (#124)
- Command R+: 28.9 (#242)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| LMArena Math | 1419 | 1188 |
| LiveBench Math | — | 21.3% |

## Knowledge

- Amazon Nova Experimental Chat 12 10: 39.2 (#136)
- Command R+: 36.4 (#169)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| LMArena Expert | 1408 | 1174 |
| Vectara Hallucination Rate | — | 6.9% |
| MMLU | — | 69.4% |

## Multilingual

- Amazon Nova Experimental Chat 12 10: 51.4 (#108)
- Command R+: 38.6 (#227)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| LMArena Non-English | 1398 | 1216 |
| LMArena Chinese | 1440 | 1226 |
| LMArena Russian | 1395 | 1227 |
| LMArena French | — | 1209 |
| LMArena German | — | 1216 |
| LMArena Japanese | — | 1166 |
| LMArena Korean | — | 1138 |
| LMArena Spanish | — | 1189 |

## Instruction Following

- Amazon Nova Experimental Chat 12 10: 73.2 (#123)
- Command R+: 60.0 (#254)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| LMArena Instruction Following | 1387 | 1197 |
| LiveBench Instruction Following | — | 57.6% |

## Long Context

- Amazon Nova Experimental Chat 12 10: 42.4 (#125)
- Command R+: 37.3 (#219)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| LMArena Longer Query | 1391 | 1230 |

## Writing & Preference

- Amazon Nova Experimental Chat 12 10: 59.5 (#110)
- Command R+: 43.5 (#228)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Command R+ |
|---|---|---|
| LMArena Text | 1420 | 1229 |
| LMArena Creative Writing | 1350 | 1235 |
| LMArena Multi-Turn | 1409 | 1213 |
| LiveBench Language | — | 29.7% |

## FAQ

### Is Amazon Nova Experimental Chat 12 10 better than Command R+?

Amazon Nova Experimental Chat 12 10 is the stronger model overall, scoring 42.9 to 32.4 on the Noometry Index.

### Is Amazon Nova Experimental Chat 12 10 or Command R+ better for coding?

Amazon Nova Experimental Chat 12 10 scores higher on coding benchmarks: 42.2 versus 29.1 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 12 10 and Command R+ share?

12 benchmarks have published results for both models. Amazon Nova Experimental Chat 12 10 has 12 scored results on Noometry and Command R+ has 34.