# GPT-5-Codex vs Granite 3.0 2b Instruct

> GPT-5-Codex is the stronger model overall, scoring 37.9 to 30.8 on the Noometry Index.

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

## Summary

- The widest gap is in coding, where GPT-5-Codex leads 42.4 to 28.3.
- Granite 3.0 2b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 37.9 | 30.8 |
| Rank | 192 | 286 |
| Context | 400K | — |
| Input $/M | $1.25 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-5-Codex: 42.4 (#103)
- Granite 3.0 2b Instruct: 28.3 (#316)

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| WeirdML | 54.5% | — |
| BigCodeBench Instruct | — | 20.5% |
| LMArena Coding | — | 1090 |

## Agentic & Tool Use

- GPT-5-Codex: 31.0 (#72)
- Granite 3.0 2b Instruct: —

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| Terminal-Bench | 44.3% | — |

## Reasoning

- GPT-5-Codex: 30.9 (#83)
- Granite 3.0 2b Instruct: 20.5 (#235)

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| Kagi LLM Benchmark | 70.3% | — |
| LMArena Hard Prompts | — | 1073 |

## Math

- GPT-5-Codex: —
- Granite 3.0 2b Instruct: 32.2 (#217)

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Math | — | 1117 |

## Knowledge

- GPT-5-Codex: —
- Granite 3.0 2b Instruct: 29.0 (#241)

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Expert | — | 1064 |

## Multilingual

- GPT-5-Codex: —
- Granite 3.0 2b Instruct: 27.0 (#278)

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Non-English | — | 1033 |
| LMArena Chinese | — | 1070 |
| LMArena Russian | — | 1045 |

## Instruction Following

- GPT-5-Codex: —
- Granite 3.0 2b Instruct: 53.9 (#284)

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Instruction Following | — | 1056 |

## Long Context

- GPT-5-Codex: —
- Granite 3.0 2b Instruct: 32.5 (#268)

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Longer Query | — | 1070 |

## Writing & Preference

- GPT-5-Codex: —
- Granite 3.0 2b Instruct: 29.6 (#292)

| Benchmark | GPT-5-Codex | Granite 3.0 2b Instruct |
|---|---|---|
| LMArena Text | — | 1080 |
| LMArena Creative Writing | — | 1046 |
| LMArena Multi-Turn | — | 1053 |

## FAQ

### Is GPT-5-Codex better than Granite 3.0 2b Instruct?

GPT-5-Codex is the stronger model overall, scoring 37.9 to 30.8 on the Noometry Index.

### Is GPT-5-Codex or Granite 3.0 2b Instruct better for coding?

GPT-5-Codex scores higher on coding benchmarks: 42.4 versus 28.3 in the Noometry coding category.

### How many benchmarks do GPT-5-Codex and Granite 3.0 2b Instruct share?

0 benchmarks have published results for both models. GPT-5-Codex has 3 scored results on Noometry and Granite 3.0 2b Instruct has 13.