Model comparison
GPT-5.1-Codex vs OLMo 2 Furious 13B
GPT-5.1-Codex is the stronger model overall, scoring 38.2 to 29.2 on the Noometry Index.
Last verified . 0 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- The widest gap is in coding, where GPT-5.1-Codex leads 41.7 to 28.1.
- OLMo 2 Furious 13B has downloadable open weights; the other is API-only.
Side by side
| GPT-5.1-Codex | OLMo 2 Furious 13B | |
|---|---|---|
| Provider | OpenAI | Allen Institute for AI (Ai2) |
| Noometry Index | 38.2 | 29.2 |
| Released | 2025-11-12 | 2024-12-31 |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $1.25 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 6 | 12 |
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Category by category
Coding GPT-5.1-Codex leads
GPT-5.1-Codex: 41.7 (#107), OLMo 2 Furious 13B: 28.1 (#309)
| Benchmark | GPT-5.1-Codex | OLMo 2 Furious 13B |
|---|---|---|
| SWE-bench Verified (bash only) | 66% | — |
| LMArena WebDev | 1337 | — |
| LiveBench Coding | — | 10.4% |
| ALE-Bench | 1,245 | — |
Agentic & Tool Use Not comparable
GPT-5.1-Codex: 37.8 (#32), OLMo 2 Furious 13B: —
| Benchmark | GPT-5.1-Codex | OLMo 2 Furious 13B |
|---|---|---|
| Terminal-Bench | 60.4% | — |
| METR Time Horizons | 70.8% | — |
Reasoning Not comparable
GPT-5.1-Codex: —, OLMo 2 Furious 13B: 14.8 (#312)
| Benchmark | GPT-5.1-Codex | OLMo 2 Furious 13B |
|---|---|---|
| LiveBench Reasoning | — | 16.3% |
| LiveBench Data Analysis | — | 20.6% |
| LiveBench | — | 22.1% |
Math GPT-5.1-Codex leads
GPT-5.1-Codex: 29.3 (#218), OLMo 2 Furious 13B: 21.3 (#270)
| Benchmark | GPT-5.1-Codex | OLMo 2 Furious 13B |
|---|---|---|
| ProofBench | 9% | — |
| Omni-MATH | — | 15.6% |
| LiveBench Math | — | 13.6% |
Knowledge Not comparable
GPT-5.1-Codex: —, OLMo 2 Furious 13B: 18.0 (#278)
| Benchmark | GPT-5.1-Codex | OLMo 2 Furious 13B |
|---|---|---|
| MMLU-Pro | — | 31% |
| GPQA (HELM) | — | 31.6% |
Instruction Following Not comparable
GPT-5.1-Codex: —, OLMo 2 Furious 13B: 61.1 (#243)
| Benchmark | GPT-5.1-Codex | OLMo 2 Furious 13B |
|---|---|---|
| LiveBench Instruction Following | — | 60.6% |
| IFEval | — | 73% |
Writing & Preference Not comparable
GPT-5.1-Codex: —, OLMo 2 Furious 13B: 43.0 (#226)
| Benchmark | GPT-5.1-Codex | OLMo 2 Furious 13B |
|---|---|---|
| WildBench | — | 68.9% |
| LiveBench Language | — | 11.2% |
Frequently asked questions
Is GPT-5.1-Codex better than OLMo 2 Furious 13B?
GPT-5.1-Codex is the stronger model overall, scoring 38.2 to 29.2 on the Noometry Index.
Is GPT-5.1-Codex or OLMo 2 Furious 13B better for coding?
GPT-5.1-Codex scores higher on coding benchmarks: 41.7 versus 28.1 in the Noometry coding category.
How many benchmarks do GPT-5.1-Codex and OLMo 2 Furious 13B share?
0 benchmarks have published results for both models. GPT-5.1-Codex has 6 scored results on Noometry and OLMo 2 Furious 13B has 12.