# Amazon Nova Experimental Chat 11 10 vs GPT-5-Codex

> Amazon Nova Experimental Chat 11 10 is the stronger model overall, scoring 42.4 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-11-10-vs-gpt-5-codex
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Snapshot

| | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 42.4 | 37.3 |
| Rank | 101 | 190 |
| Context | — | 400K |
| Input $/M | — | $1.25 |
| Output $/M | — | $10 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 11 10: 41.6 (#109)
- GPT-5-Codex: 41.9 (#100)

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| WeirdML | — | 54.5% |
| LMArena Coding | 1433 | — |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 11 10: —
- GPT-5-Codex: 30.8 (#66)

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| Terminal-Bench | — | 44.3% |

## Reasoning

- Amazon Nova Experimental Chat 11 10: 27.9 (#94)
- GPT-5-Codex: 30.0 (#80)

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| Kagi LLM Benchmark | — | 70.3% |
| LMArena Hard Prompts | 1422 | — |

## Math

- Amazon Nova Experimental Chat 11 10: 36.4 (#116)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| LMArena Math | 1431 | — |

## Knowledge

- Amazon Nova Experimental Chat 11 10: 39.3 (#122)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| LMArena Expert | 1432 | — |

## Multilingual

- Amazon Nova Experimental Chat 11 10: 52.1 (#91)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| LMArena Non-English | 1405 | — |
| LMArena Chinese | 1463 | — |
| LMArena French | 1449 | — |
| LMArena German | 1396 | — |
| LMArena Japanese | 1383 | — |
| LMArena Korean | 1387 | — |
| LMArena Russian | 1395 | — |
| LMArena Spanish | 1444 | — |

## Instruction Following

- Amazon Nova Experimental Chat 11 10: 73.4 (#118)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| LMArena Instruction Following | 1387 | — |

## Long Context

- Amazon Nova Experimental Chat 11 10: 42.5 (#116)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| LMArena Longer Query | 1395 | — |

## Writing & Preference

- Amazon Nova Experimental Chat 11 10: 59.0 (#109)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 11 10 | GPT-5-Codex |
|---|---|---|
| LMArena Text | 1415 | — |
| LMArena Creative Writing | 1349 | — |
| LMArena Multi-Turn | 1380 | — |

## FAQ

### Is Amazon Nova Experimental Chat 11 10 better than GPT-5-Codex?

Amazon Nova Experimental Chat 11 10 is the stronger model overall, scoring 42.4 to 37.3 on the Noometry Index.

### Is Amazon Nova Experimental Chat 11 10 or GPT-5-Codex better for coding?

They score almost the same on coding (41.6 vs 41.9); test both on your own repository before choosing.

### How many benchmarks do Amazon Nova Experimental Chat 11 10 and GPT-5-Codex share?

0 benchmarks have published results for both models. Amazon Nova Experimental Chat 11 10 has 17 scored results on Noometry and GPT-5-Codex has 3.