# Amazon Nova Experimental Chat 26 02 10 vs GPT-5-Codex

> Amazon Nova Experimental Chat 26 02 10 is the stronger model overall, scoring 43.8 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-26-02-10-vs-gpt-5-codex
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Snapshot

| | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 43.8 | 37.3 |
| Rank | 77 | 190 |
| Context | — | 400K |
| Input $/M | — | $1.25 |
| Output $/M | — | $10 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 26 02 10: 43.2 (#81)
- GPT-5-Codex: 41.9 (#100)

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| WeirdML | — | 54.5% |
| LMArena Coding | 1483 | — |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 26 02 10: —
- GPT-5-Codex: 30.8 (#66)

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| Terminal-Bench | — | 44.3% |

## Reasoning

- Amazon Nova Experimental Chat 26 02 10: 28.9 (#84)
- GPT-5-Codex: 30.0 (#80)

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| Kagi LLM Benchmark | — | 70.3% |
| LMArena Hard Prompts | 1458 | — |

## Math

- Amazon Nova Experimental Chat 26 02 10: 36.6 (#108)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Math | 1440 | — |

## Knowledge

- Amazon Nova Experimental Chat 26 02 10: 41.6 (#98)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Expert | 1505 | — |

## Multilingual

- Amazon Nova Experimental Chat 26 02 10: 54.3 (#48)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Non-English | 1435 | — |
| LMArena Chinese | 1465 | — |
| LMArena Russian | 1423 | — |

## Instruction Following

- Amazon Nova Experimental Chat 26 02 10: 75.3 (#66)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Instruction Following | 1426 | — |

## Long Context

- Amazon Nova Experimental Chat 26 02 10: 44.0 (#73)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Longer Query | 1441 | — |

## Writing & Preference

- Amazon Nova Experimental Chat 26 02 10: 62.0 (#80)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 02 10 | GPT-5-Codex |
|---|---|---|
| LMArena Text | 1449 | — |
| LMArena Creative Writing | 1369 | — |
| LMArena Multi-Turn | 1442 | — |

## FAQ

### Is Amazon Nova Experimental Chat 26 02 10 better than GPT-5-Codex?

Amazon Nova Experimental Chat 26 02 10 is the stronger model overall, scoring 43.8 to 37.3 on the Noometry Index.

### Is Amazon Nova Experimental Chat 26 02 10 or GPT-5-Codex better for coding?

Amazon Nova Experimental Chat 26 02 10 scores higher on coding benchmarks: 43.2 versus 41.9 in the Noometry coding category.

### How many benchmarks do Amazon Nova Experimental Chat 26 02 10 and GPT-5-Codex share?

0 benchmarks have published results for both models. Amazon Nova Experimental Chat 26 02 10 has 12 scored results on Noometry and GPT-5-Codex has 3.