# Gemini Advanced 0514 vs GPT-5.3 Codex

> GPT-5.3 Codex is the stronger model overall, scoring 45.5 to 37.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-advanced-vs-gpt-5-3-codex
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where GPT-5.3 Codex leads 48.5 to 36.0.

## Snapshot

| | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 37.1 | 45.5 |
| Rank | 195 | 61 |
| Context | — | 400K |
| Input $/M | — | $1.75 |
| Output $/M | — | $14 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini Advanced 0514: 36.0 (#202)
- GPT-5.3 Codex: 48.5 (#51)

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| SWE-bench Verified | — | 74.8% |
| LMArena WebDev | — | 1408 |
| WeirdML | — | 79.3% |
| LMArena Coding | 1255 | — |
| ALE-Bench | — | 1,655 |

## Agentic & Tool Use

- Gemini Advanced 0514: —
- GPT-5.3 Codex: 47.8 (#9)

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| Terminal-Bench | — | 78.4% |
| METR Time Horizons | — | 74.5% |
| Vending-Bench 2 | — | 5,940 |

## Reasoning

- Gemini Advanced 0514: 23.6 (#163)
- GPT-5.3 Codex: —

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| LMArena Hard Prompts | 1248 | — |
| Epoch Capabilities Index | — | 156.84 |

## Math

- Gemini Advanced 0514: 32.9 (#181)
- GPT-5.3 Codex: —

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| LMArena Math | 1272 | — |

## Knowledge

- Gemini Advanced 0514: 32.7 (#201)
- GPT-5.3 Codex: —

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| LMArena Expert | 1215 | — |

## Multilingual

- Gemini Advanced 0514: 42.8 (#187)
- GPT-5.3 Codex: —

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| LMArena Non-English | 1274 | — |
| LMArena Chinese | 1274 | — |
| LMArena French | 1306 | — |
| LMArena German | 1275 | — |
| LMArena Japanese | 1242 | — |
| LMArena Korean | 1232 | — |
| LMArena Russian | 1283 | — |
| LMArena Spanish | 1242 | — |

## Instruction Following

- Gemini Advanced 0514: 66.2 (#206)
- GPT-5.3 Codex: —

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| LMArena Instruction Following | 1254 | — |

## Long Context

- Gemini Advanced 0514: 38.0 (#202)
- GPT-5.3 Codex: —

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| LMArena Longer Query | 1254 | — |

## Writing & Preference

- Gemini Advanced 0514: 48.8 (#195)
- GPT-5.3 Codex: —

| Benchmark | Gemini Advanced 0514 | GPT-5.3 Codex |
|---|---|---|
| LMArena Text | 1279 | — |
| LMArena Creative Writing | 1284 | — |
| LMArena Multi-Turn | 1269 | — |

## FAQ

### Is Gemini Advanced 0514 better than GPT-5.3 Codex?

GPT-5.3 Codex is the stronger model overall, scoring 45.5 to 37.1 on the Noometry Index.

### Is Gemini Advanced 0514 or GPT-5.3 Codex better for coding?

GPT-5.3 Codex scores higher on coding benchmarks: 48.5 versus 36.0 in the Noometry coding category.

### How many benchmarks do Gemini Advanced 0514 and GPT-5.3 Codex share?

0 benchmarks have published results for both models. Gemini Advanced 0514 has 17 scored results on Noometry and GPT-5.3 Codex has 8.