# Gemma 2 2b IT vs GPT-5.3 Codex

> GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 33.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemma-2-2b-it-vs-gpt-5-3-codex
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where GPT-5.3 Codex leads 48.6 to 32.3.
- Gemma 2 2b IT has downloadable open weights; the other is API-only.

## Snapshot

| | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 33.1 | 45.8 |
| Rank | 248 | 69 |
| Context | — | 400K |
| Input $/M | — | $1.75 |
| Output $/M | — | $14 |
| Weights | Open | Proprietary |

## Coding

- Gemma 2 2b IT: 32.3 (#273)
- GPT-5.3 Codex: 48.6 (#56)

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| SWE-bench Verified | — | 74.8% |
| LMArena WebDev | — | 1409 |
| WeirdML | — | 79.3% |
| LMArena Coding | 1112 | — |
| ALE-Bench | — | 1,655 |

## Agentic & Tool Use

- Gemma 2 2b IT: —
- GPT-5.3 Codex: 48.0 (#9)

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| Terminal-Bench | — | 78.4% |
| METR Time Horizons | — | 74.5% |
| Vending-Bench 2 | — | 5,940 |

## Reasoning

- Gemma 2 2b IT: 21.4 (#224)
- GPT-5.3 Codex: —

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| LMArena Hard Prompts | 1113 | — |
| Epoch Capabilities Index | — | 156.77 |

## Math

- Gemma 2 2b IT: 32.6 (#212)
- GPT-5.3 Codex: —

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| LMArena Math | 1135 | — |

## Knowledge

- Gemma 2 2b IT: 29.9 (#231)
- GPT-5.3 Codex: —

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| LMArena Expert | 1096 | — |

## Multilingual

- Gemma 2 2b IT: 32.3 (#257)
- GPT-5.3 Codex: —

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| LMArena Non-English | 1121 | — |
| LMArena Chinese | 1132 | — |
| LMArena French | 1157 | — |
| LMArena German | 1114 | — |
| LMArena Japanese | 1083 | — |
| LMArena Korean | 1055 | — |
| LMArena Russian | 1118 | — |
| LMArena Spanish | 1140 | — |

## Instruction Following

- Gemma 2 2b IT: 57.8 (#263)
- GPT-5.3 Codex: —

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| LMArena Instruction Following | 1118 | — |

## Long Context

- Gemma 2 2b IT: 34.3 (#250)
- GPT-5.3 Codex: —

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| LMArena Longer Query | 1130 | — |

## Writing & Preference

- Gemma 2 2b IT: 36.5 (#263)
- GPT-5.3 Codex: —

| Benchmark | Gemma 2 2b IT | GPT-5.3 Codex |
|---|---|---|
| LMArena Text | 1156 | — |
| LMArena Creative Writing | 1147 | — |
| LMArena Multi-Turn | 1118 | — |

## FAQ

### Is Gemma 2 2b IT better than GPT-5.3 Codex?

GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 33.1 on the Noometry Index.

### Is Gemma 2 2b IT or GPT-5.3 Codex better for coding?

GPT-5.3 Codex scores higher on coding benchmarks: 48.6 versus 32.3 in the Noometry coding category.

### How many benchmarks do Gemma 2 2b IT and GPT-5.3 Codex share?

0 benchmarks have published results for both models. Gemma 2 2b IT has 17 scored results on Noometry and GPT-5.3 Codex has 8.