Model comparison
GPT-5.4 nano vs Olmo 2 0325 32b Instruct
GPT-5.4 nano is the stronger model overall, scoring 41.9 to 32.7 on the Noometry Index.
Last verified . 11 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 11 benchmarks with published results for both. GPT-5.4 nano scores higher in 8 categories and Olmo 2 0325 32b Instruct in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5.4 nano leads 41.9 to 19.5.
- Olmo 2 0325 32b Instruct has downloadable open weights; the other is API-only.
Side by side
| GPT-5.4 nano | Olmo 2 0325 32b Instruct | |
|---|---|---|
| Provider | OpenAI | Allen Institute for AI (Ai2) |
| Noometry Index | 41.9 | 32.7 |
| Released | 2026-03-17 | — |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.20 | — |
| Output $ / M tokens | $1.25 | — |
| Results tracked | 40 | 16 |
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Category by category
Coding GPT-5.4 nano leads
GPT-5.4 nano: 43.6 (#84), Olmo 2 0325 32b Instruct: 35.2 (#227)
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Coding | 1405 | 1210 |
| SciCode | 46.9% | — |
| WeirdML | 49.2% | — |
| ALE-Bench | 1,005 | — |
Reasoning Too close to call
GPT-5.4 nano: 23.7 (#173), Olmo 2 0325 32b Instruct: 23.6 (#175)
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1381 | 1208 |
| ARC-AGI-2 | 5.7% | — |
| Kagi LLM Benchmark | 39.7% | — |
| ARC-AGI-1 | 51.5% | — |
| CritPt | 9.3% | — |
| Chess Puzzles | 30% | — |
| Mystery Game Puzzles | 9% | — |
| DTBench | 80.3% | — |
| LMCA | 36.9% | — |
| Epoch Capabilities Index | 145.81 | — |
| ForecastBench | 57.3 | — |
Math GPT-5.4 nano leads
GPT-5.4 nano: 40.9 (#88), Olmo 2 0325 32b Instruct: 26.8 (#255)
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Math | 1406 | 1208 |
| FrontierMath (Tiers 1-3) | 44.9% | — |
| FrontierMath Tier 4 | 12.2% | — |
| OTIS Mock AIME 2024-2025 | 87.8% | — |
| ProofBench | 5% | — |
| Omni-MATH | — | 16.1% |
| FrontierMath (Feb 2025 set) | 25.9% | — |
| FrontierMath Tier 4 (v1) | 6.3% | — |
Knowledge GPT-5.4 nano leads
GPT-5.4 nano: 41.9 (#103), Olmo 2 0325 32b Instruct: 19.5 (#279)
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| GPQA Diamond | 78.5% | — |
| SimpleQA Verified | 11.7% | — |
| MMLU-Pro | — | 41.4% |
| Vectara Hallucination Rate | 3.1% | — |
| GPQA (HELM) | — | 28.7% |
| LMArena Expert | 1396 | — |
Multimodal Not comparable
GPT-5.4 nano: 36.7 (#78), Olmo 2 0325 32b Instruct: —
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Vision | 1196 | — |
Multilingual GPT-5.4 nano leads
GPT-5.4 nano: 48.6 (#140), Olmo 2 0325 32b Instruct: 34.8 (#248)
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Non-English | 1359 | 1160 |
| LMArena Chinese | 1392 | 1192 |
| LMArena Russian | 1363 | 1187 |
| LMArena French | 1396 | — |
| LMArena German | 1367 | — |
| LMArena Japanese | 1343 | — |
| LMArena Korean | 1320 | — |
| LMArena Spanish | 1371 | — |
Instruction Following GPT-5.4 nano leads
GPT-5.4 nano: 71.9 (#144), Olmo 2 0325 32b Instruct: 61.5 (#244)
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Instruction Following | 1362 | 1186 |
| IFEval | — | 78% |
Long Context GPT-5.4 nano leads
GPT-5.4 nano: 41.6 (#137), Olmo 2 0325 32b Instruct: 36.2 (#234)
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1366 | 1194 |
Writing & Preference GPT-5.4 nano leads
GPT-5.4 nano: 55.7 (#142), Olmo 2 0325 32b Instruct: 42.1 (#236)
| Benchmark | GPT-5.4 nano | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Text | 1372 | 1218 |
| LMArena Creative Writing | 1314 | 1199 |
| LMArena Multi-Turn | 1382 | 1221 |
| WildBench | — | 73.4% |
Frequently asked questions
Is GPT-5.4 nano better than Olmo 2 0325 32b Instruct?
GPT-5.4 nano is the stronger model overall, scoring 41.9 to 32.7 on the Noometry Index.
Is GPT-5.4 nano or Olmo 2 0325 32b Instruct better for coding?
GPT-5.4 nano scores higher on coding benchmarks: 43.6 versus 35.2 in the Noometry coding category.
How many benchmarks do GPT-5.4 nano and Olmo 2 0325 32b Instruct share?
11 benchmarks have published results for both models. GPT-5.4 nano has 40 scored results on Noometry and Olmo 2 0325 32b Instruct has 16.