Model comparison
GPT-5.1-Codex vs Llama2 70b Steerlm Chat
GPT-5.1-Codex is the stronger model overall, scoring 38.6 to 31.8 on the Noometry Index.
Last verified . 0 shared benchmarks.
NVIDIASummary
- The widest gap is in coding, where GPT-5.1-Codex leads 41.9 to 29.9.
- Llama2 70b Steerlm Chat has downloadable open weights; the other is API-only.
Side by side
| GPT-5.1-Codex | Llama2 70b Steerlm Chat | |
|---|---|---|
| Provider | OpenAI | NVIDIA |
| Noometry Index | 38.6 | 31.8 |
| Released | 2025-11-12 | — |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $1.25 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 6 | 9 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding GPT-5.1-Codex leads
GPT-5.1-Codex: 41.9 (#116), Llama2 70b Steerlm Chat: 29.9 (#300)
| Benchmark | GPT-5.1-Codex | Llama2 70b Steerlm Chat |
|---|---|---|
| SWE-bench Verified (bash only) | 66% | — |
| LMArena WebDev | 1337 | — |
| LMArena Coding | — | 1025 |
| ALE-Bench | 1,245 | — |
Agentic & Tool Use Not comparable
GPT-5.1-Codex: 38.0 (#33), Llama2 70b Steerlm Chat: —
| Benchmark | GPT-5.1-Codex | Llama2 70b Steerlm Chat |
|---|---|---|
| Terminal-Bench | 60.4% | — |
| METR Time Horizons | 70.8% | — |
Reasoning Not comparable
GPT-5.1-Codex: —, Llama2 70b Steerlm Chat: 20.0 (#246)
| Benchmark | GPT-5.1-Codex | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Hard Prompts | — | 1047 |
Math Too close to call
GPT-5.1-Codex: 30.3 (#235), Llama2 70b Steerlm Chat: 31.3 (#226)
| Benchmark | GPT-5.1-Codex | Llama2 70b Steerlm Chat |
|---|---|---|
| ProofBench | 9% | — |
| LMArena Math | — | 1072 |
Multilingual Not comparable
GPT-5.1-Codex: —, Llama2 70b Steerlm Chat: 28.8 (#270)
| Benchmark | GPT-5.1-Codex | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Non-English | — | 1063 |
Instruction Following Not comparable
GPT-5.1-Codex: —, Llama2 70b Steerlm Chat: 54.2 (#279)
| Benchmark | GPT-5.1-Codex | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Instruction Following | — | 1060 |
Long Context Not comparable
GPT-5.1-Codex: —, Llama2 70b Steerlm Chat: 30.4 (#288)
| Benchmark | GPT-5.1-Codex | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Longer Query | — | 998 |
Writing & Preference Not comparable
GPT-5.1-Codex: —, Llama2 70b Steerlm Chat: 31.6 (#283)
| Benchmark | GPT-5.1-Codex | Llama2 70b Steerlm Chat |
|---|---|---|
| LMArena Text | — | 1098 |
| LMArena Creative Writing | — | 1091 |
| LMArena Multi-Turn | — | 1058 |
Frequently asked questions
Is GPT-5.1-Codex better than Llama2 70b Steerlm Chat?
GPT-5.1-Codex is the stronger model overall, scoring 38.6 to 31.8 on the Noometry Index.
Is GPT-5.1-Codex or Llama2 70b Steerlm Chat better for coding?
GPT-5.1-Codex scores higher on coding benchmarks: 41.9 versus 29.9 in the Noometry coding category.
How many benchmarks do GPT-5.1-Codex and Llama2 70b Steerlm Chat share?
0 benchmarks have published results for both models. GPT-5.1-Codex has 6 scored results on Noometry and Llama2 70b Steerlm Chat has 9.