# Amazon Nova Experimental Chat 10 09 vs Chatgpt 4o Latest 20250326

> Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 41.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-10-09-vs-chatgpt-4o
- 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 0 categories and Chatgpt 4o Latest 20250326 in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Chatgpt 4o Latest 20250326 leads 62.6 to 54.7.

## Snapshot

| | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 41.9 | 43.8 |
| Rank | 126 | 82 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 10 09: 40.2 (#145)
- Chatgpt 4o Latest 20250326: 41.6 (#122)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| LMArena Coding | 1370 | 1413 |

## Reasoning

- Amazon Nova Experimental Chat 10 09: 27.3 (#120)
- Chatgpt 4o Latest 20250326: 33.8 (#71)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1424 |
| Kagi LLM Benchmark | — | 75% |

## Math

- Amazon Nova Experimental Chat 10 09: —
- Chatgpt 4o Latest 20250326: 38.6 (#134)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| LMArena Math | — | 1407 |

## Knowledge

- Amazon Nova Experimental Chat 10 09: —
- Chatgpt 4o Latest 20250326: 39.2 (#137)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| Confabulations | — | 16.6% |
| LMArena Expert | — | 1401 |

## Multimodal

- Amazon Nova Experimental Chat 10 09: —
- Chatgpt 4o Latest 20250326: 39.6 (#58)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| LMArena Vision | — | 1243 |

## Multilingual

- Amazon Nova Experimental Chat 10 09: 47.3 (#150)
- Chatgpt 4o Latest 20250326: 52.9 (#76)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| LMArena Non-English | 1340 | 1419 |
| LMArena Chinese | 1341 | 1457 |
| LMArena French | — | 1446 |
| LMArena German | — | 1423 |
| LMArena Japanese | — | 1405 |
| LMArena Korean | — | 1396 |
| LMArena Russian | — | 1429 |
| LMArena Spanish | — | 1434 |

## Instruction Following

- Amazon Nova Experimental Chat 10 09: 69.4 (#172)
- Chatgpt 4o Latest 20250326: 74.0 (#107)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| LMArena Instruction Following | 1315 | 1403 |

## Long Context

- Amazon Nova Experimental Chat 10 09: 40.5 (#152)
- Chatgpt 4o Latest 20250326: 43.1 (#107)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| LMArena Longer Query | 1333 | 1413 |

## Writing & Preference

- Amazon Nova Experimental Chat 10 09: 54.7 (#149)
- Chatgpt 4o Latest 20250326: 62.6 (#72)

| Benchmark | Amazon Nova Experimental Chat 10 09 | Chatgpt 4o Latest 20250326 |
|---|---|---|
| LMArena Text | 1364 | 1429 |
| LMArena Creative Writing | 1307 | 1405 |
| LMArena Multi-Turn | 1355 | 1454 |
| EQ-Bench Creative Writing | — | 1501 |

## FAQ

### Is Amazon Nova Experimental Chat 10 09 better than Chatgpt 4o Latest 20250326?

Chatgpt 4o Latest 20250326 is the stronger model overall, scoring 43.8 to 41.9 on the Noometry Index.

### Is Amazon Nova Experimental Chat 10 09 or Chatgpt 4o Latest 20250326 better for coding?

Chatgpt 4o Latest 20250326 scores higher on coding benchmarks: 41.6 versus 40.2 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 10 09 and Chatgpt 4o Latest 20250326 share?

9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and Chatgpt 4o Latest 20250326 has 21.