# Codellama 70b Instruct vs GPT-5.3 Codex

> GPT-5.3 Codex is the stronger model overall, scoring 45.5 to 33.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/codellama-70b-instruct-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 37.0.
- Codellama 70b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Codellama 70b Instruct | GPT-5.3 Codex |
|---|---|---|
| Provider | Meta | OpenAI |
| Noometry Index | 33.3 | 45.5 |
| Rank | 236 | 61 |
| Context | — | 400K |
| Input $/M | — | $1.75 |
| Output $/M | — | $14 |
| Weights | Open | Proprietary |

## Coding

- Codellama 70b Instruct: 37.0 (#189)
- GPT-5.3 Codex: 48.5 (#51)

| Benchmark | Codellama 70b Instruct | GPT-5.3 Codex |
|---|---|---|
| SWE-bench Verified | — | 74.8% |
| LMArena WebDev | — | 1408 |
| WeirdML | — | 79.3% |
| BigCodeBench Instruct | 40.7% | — |
| BigCodeBench Complete | 49.6% | — |
| ALE-Bench | — | 1,655 |
| HumanEval+ | 65.9% | — |

## Agentic & Tool Use

- Codellama 70b Instruct: —
- GPT-5.3 Codex: 47.8 (#9)

| Benchmark | Codellama 70b Instruct | GPT-5.3 Codex |
|---|---|---|
| Terminal-Bench | — | 78.4% |
| METR Time Horizons | — | 74.5% |
| Vending-Bench 2 | — | 5,940 |

## Reasoning

- Codellama 70b Instruct: 19.2 (#241)
- GPT-5.3 Codex: —

| Benchmark | Codellama 70b Instruct | GPT-5.3 Codex |
|---|---|---|
| LMArena Hard Prompts | 1052 | — |
| Epoch Capabilities Index | — | 156.84 |

## Multilingual

- Codellama 70b Instruct: 24.9 (#283)
- GPT-5.3 Codex: —

| Benchmark | Codellama 70b Instruct | GPT-5.3 Codex |
|---|---|---|
| LMArena Non-English | 992 | — |

## Instruction Following

- Codellama 70b Instruct: 52.1 (#288)
- GPT-5.3 Codex: —

| Benchmark | Codellama 70b Instruct | GPT-5.3 Codex |
|---|---|---|
| LMArena Instruction Following | 1024 | — |

## Writing & Preference

- Codellama 70b Instruct: 33.6 (#272)
- GPT-5.3 Codex: —

| Benchmark | Codellama 70b Instruct | GPT-5.3 Codex |
|---|---|---|
| LMArena Text | 1057 | — |

## FAQ

### Is Codellama 70b Instruct better than GPT-5.3 Codex?

GPT-5.3 Codex is the stronger model overall, scoring 45.5 to 33.3 on the Noometry Index.

### Is Codellama 70b Instruct or GPT-5.3 Codex better for coding?

GPT-5.3 Codex scores higher on coding benchmarks: 48.5 versus 37.0 in the Noometry coding category.

### How many benchmarks do Codellama 70b Instruct and GPT-5.3 Codex share?

0 benchmarks have published results for both models. Codellama 70b Instruct has 7 scored results on Noometry and GPT-5.3 Codex has 8.