# Amazon Nova Experimental Chat 10 09 vs Step 3

> Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 40.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-09-vs-step-3
- Last updated: 2026-10-10
- Shared benchmarks: 9

## Summary

- They share 9 benchmarks with published results for both. Amazon Nova Experimental Chat 10 09 scores higher in 4 categories and Step 3 in 2 categories; one gap is clear of the uncertainty.
- Step 3 has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| Provider | Amazon | StepFun |
| Noometry Index | 41.9 | 40.5 |
| Rank | 126 | 149 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 10 09: 40.2 (#145)
- Step 3: 40.1 (#147)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Coding | 1370 | 1367 |

## Reasoning

- Amazon Nova Experimental Chat 10 09: 27.3 (#120)
- Step 3: 28.4 (#105)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1355 |
| Kagi LLM Benchmark | — | 62.3% |

## Math

- Amazon Nova Experimental Chat 10 09: —
- Step 3: 37.6 (#148)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Math | — | 1366 |

## Knowledge

- Amazon Nova Experimental Chat 10 09: —
- Step 3: 36.8 (#164)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Expert | — | 1333 |

## Multimodal

- Amazon Nova Experimental Chat 10 09: —
- Step 3: 35.5 (#86)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Vision | — | 1177 |

## Multilingual

- Amazon Nova Experimental Chat 10 09: 47.3 (#150)
- Step 3: 46.3 (#159)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Non-English | 1340 | 1327 |
| LMArena Chinese | 1341 | 1397 |
| LMArena German | — | 1371 |
| LMArena Korean | — | 1269 |
| LMArena Russian | — | 1331 |
| LMArena Spanish | — | 1371 |

## Instruction Following

- Amazon Nova Experimental Chat 10 09: 69.4 (#172)
- Step 3: 70.4 (#164)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Instruction Following | 1315 | 1332 |

## Long Context

- Amazon Nova Experimental Chat 10 09: 40.5 (#152)
- Step 3: 40.3 (#157)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Longer Query | 1333 | 1326 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 09: 54.7 (#149)
- Step 3: 54.3 (#151)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Step 3 |
|---|---|---|
| LMArena Text | 1364 | 1350 |
| LMArena Creative Writing | 1307 | 1321 |
| LMArena Multi-Turn | 1355 | 1341 |

## FAQ

### Is Amazon Nova Experimental Chat 10 09 better than Step 3?

Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 40.5 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 09 or Step 3 better for coding?

They score almost the same on coding (40.2 vs 40.1); test both on your own repository before choosing.

### How many benchmarks do Amazon Nova Experimental Chat 10 09 and Step 3 share?

9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and Step 3 has 17.