# Amazon Nova Experimental Chat 12 10 vs Devstral Small 2505

> Amazon Nova Experimental Chat 12 10 is the stronger model overall, scoring 42.9 to 34.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-12-10-vs-devstral-small
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Amazon Nova Experimental Chat 12 10 leads 29.3 to 19.7.
- Devstral Small 2505 has downloadable open weights; the other is API-only.

## Snapshot

| | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| Provider | Amazon | Mistral AI |
| Noometry Index | 42.9 | 34.3 |
| Rank | 104 | 233 |
| Context | — | 128K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.30 |
| Weights | Proprietary | Open |

## Coding

- Amazon Nova Experimental Chat 12 10: 42.2 (#110)
- Devstral Small 2505: 38.9 (#166)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| SWE-bench Verified (bash only) | — | 56.4% |
| SciCode | — | 28.8% |
| LMArena Coding | 1430 | — |

## Reasoning

- Amazon Nova Experimental Chat 12 10: 29.3 (#94)
- Devstral Small 2505: 19.7 (#252)

| Benchmark | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| Kagi LLM Benchmark | — | 37.7% |
| CritPt | — | 0% |
| LMArena Hard Prompts | 1427 | — |

## Math

- Amazon Nova Experimental Chat 12 10: 38.9 (#124)
- Devstral Small 2505: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| LMArena Math | 1419 | — |

## Knowledge

- Amazon Nova Experimental Chat 12 10: 39.2 (#136)
- Devstral Small 2505: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| LMArena Expert | 1408 | — |

## Multilingual

- Amazon Nova Experimental Chat 12 10: 51.4 (#108)
- Devstral Small 2505: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| LMArena Non-English | 1398 | — |
| LMArena Chinese | 1440 | — |
| LMArena Russian | 1395 | — |

## Instruction Following

- Amazon Nova Experimental Chat 12 10: 73.2 (#123)
- Devstral Small 2505: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| LMArena Instruction Following | 1387 | — |

## Long Context

- Amazon Nova Experimental Chat 12 10: 42.4 (#125)
- Devstral Small 2505: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| LMArena Longer Query | 1391 | — |

## Writing & Preference

- Amazon Nova Experimental Chat 12 10: 59.5 (#110)
- Devstral Small 2505: —

| Benchmark | Amazon Nova Experimental Chat 12 10 | Devstral Small 2505 |
|---|---|---|
| LMArena Text | 1420 | — |
| LMArena Creative Writing | 1350 | — |
| LMArena Multi-Turn | 1409 | — |

## FAQ

### Is Amazon Nova Experimental Chat 12 10 better than Devstral Small 2505?

Amazon Nova Experimental Chat 12 10 is the stronger model overall, scoring 42.9 to 34.3 on the Noometry Index.

### Is Amazon Nova Experimental Chat 12 10 or Devstral Small 2505 better for coding?

Amazon Nova Experimental Chat 12 10 scores higher on coding benchmarks: 42.2 versus 38.9 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 12 10 and Devstral Small 2505 share?

0 benchmarks have published results for both models. Amazon Nova Experimental Chat 12 10 has 12 scored results on Noometry and Devstral Small 2505 has 4.