Model comparison
Codellama 70b Instruct vs GPT-5-Codex
GPT-5-Codex is the stronger model overall, scoring 37.9 to 33.7 on the Noometry Index.
Last verified . 0 shared benchmarks.
MetaSummary
- The widest gap is in reasoning, where GPT-5-Codex leads 30.9 to 20.1.
- Codellama 70b Instruct has downloadable open weights; the other is API-only.
Side by side
| Codellama 70b Instruct | GPT-5-Codex | |
|---|---|---|
| Provider | Meta | OpenAI |
| Noometry Index | 33.7 | 37.9 |
| Released | — | 2025-09-15 |
| Weights | Open | Proprietary |
| Context window | — | 400K |
| Max output | — | 128K |
| Input $ / M tokens | — | $1.25 |
| Output $ / M tokens | — | $10 |
| Results tracked | 7 | 3 |
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Category by category
Coding GPT-5-Codex leads
Codellama 70b Instruct: 37.6 (#193), GPT-5-Codex: 42.4 (#103)
| Benchmark | Codellama 70b Instruct | GPT-5-Codex |
|---|---|---|
| WeirdML | — | 54.5% |
| BigCodeBench Instruct | 40.7% | — |
| BigCodeBench Complete | 49.6% | — |
| HumanEval+ | 65.9% | — |
Agentic & Tool Use Not comparable
Codellama 70b Instruct: —, GPT-5-Codex: 31.0 (#72)
| Benchmark | Codellama 70b Instruct | GPT-5-Codex |
|---|---|---|
| Terminal-Bench | — | 44.3% |
Reasoning GPT-5-Codex leads
Codellama 70b Instruct: 20.1 (#242), GPT-5-Codex: 30.9 (#83)
| Benchmark | Codellama 70b Instruct | GPT-5-Codex |
|---|---|---|
| Kagi LLM Benchmark | — | 70.3% |
| LMArena Hard Prompts | 1052 | — |
Multilingual Not comparable
Codellama 70b Instruct: 24.8 (#288), GPT-5-Codex: —
| Benchmark | Codellama 70b Instruct | GPT-5-Codex |
|---|---|---|
| LMArena Non-English | 992 | — |
Instruction Following Not comparable
Codellama 70b Instruct: 51.9 (#293), GPT-5-Codex: —
| Benchmark | Codellama 70b Instruct | GPT-5-Codex |
|---|---|---|
| LMArena Instruction Following | 1024 | — |
Writing & Preference Not comparable
Codellama 70b Instruct: 33.4 (#277), GPT-5-Codex: —
| Benchmark | Codellama 70b Instruct | GPT-5-Codex |
|---|---|---|
| LMArena Text | 1057 | — |
Frequently asked questions
Is Codellama 70b Instruct better than GPT-5-Codex?
GPT-5-Codex is the stronger model overall, scoring 37.9 to 33.7 on the Noometry Index.
Is Codellama 70b Instruct or GPT-5-Codex better for coding?
GPT-5-Codex scores higher on coding benchmarks: 42.4 versus 37.6 in the Noometry coding category.
How many benchmarks do Codellama 70b Instruct and GPT-5-Codex share?
0 benchmarks have published results for both models. Codellama 70b Instruct has 7 scored results on Noometry and GPT-5-Codex has 3.