# Amazon Nova Experimental Chat 26 01 10 vs GPT-5-Codex

> Amazon Nova Experimental Chat 26 01 10 is the stronger model overall, scoring 42.2 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/amazon-nova-experimental-chat-26-01-10-vs-gpt-5-codex
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Snapshot

| | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| Provider | Amazon | OpenAI |
| Noometry Index | 42.2 | 37.3 |
| Rank | 108 | 190 |
| Context | — | 400K |
| Input $/M | — | $1.25 |
| Output $/M | — | $10 |
| Weights | Proprietary | Proprietary |

## Coding

- Amazon Nova Experimental Chat 26 01 10: 42.1 (#97)
- GPT-5-Codex: 41.9 (#100)

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| WeirdML | — | 54.5% |
| LMArena Coding | 1447 | — |

## Agentic & Tool Use

- Amazon Nova Experimental Chat 26 01 10: —
- GPT-5-Codex: 30.8 (#66)

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| Terminal-Bench | — | 44.3% |

## Reasoning

- Amazon Nova Experimental Chat 26 01 10: 27.8 (#97)
- GPT-5-Codex: 30.0 (#80)

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| Kagi LLM Benchmark | — | 70.3% |
| LMArena Hard Prompts | 1415 | — |

## Math

- Amazon Nova Experimental Chat 26 01 10: 35.8 (#136)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| LMArena Math | 1404 | — |

## Knowledge

- Amazon Nova Experimental Chat 26 01 10: 39.7 (#115)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| LMArena Expert | 1445 | — |

## Multilingual

- Amazon Nova Experimental Chat 26 01 10: 50.4 (#121)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| LMArena Non-English | 1381 | — |
| LMArena Chinese | 1373 | — |
| LMArena Russian | 1393 | — |
| LMArena Spanish | 1390 | — |

## Instruction Following

- Amazon Nova Experimental Chat 26 01 10: 73.1 (#121)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| LMArena Instruction Following | 1381 | — |

## Long Context

- Amazon Nova Experimental Chat 26 01 10: 42.7 (#114)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| LMArena Longer Query | 1401 | — |

## Writing & Preference

- Amazon Nova Experimental Chat 26 01 10: 57.6 (#123)
- GPT-5-Codex: —

| Benchmark | Amazon Nova Experimental Chat 26 01 10 | GPT-5-Codex |
|---|---|---|
| LMArena Text | 1396 | — |
| LMArena Creative Writing | 1331 | — |
| LMArena Multi-Turn | 1380 | — |

## FAQ

### Is Amazon Nova Experimental Chat 26 01 10 better than GPT-5-Codex?

Amazon Nova Experimental Chat 26 01 10 is the stronger model overall, scoring 42.2 to 37.3 on the Noometry Index.

### Is Amazon Nova Experimental Chat 26 01 10 or GPT-5-Codex better for coding?

They score almost the same on coding (42.1 vs 41.9); test both on your own repository before choosing.

### How many benchmarks do Amazon Nova Experimental Chat 26 01 10 and GPT-5-Codex share?

0 benchmarks have published results for both models. Amazon Nova Experimental Chat 26 01 10 has 13 scored results on Noometry and GPT-5-Codex has 3.