Model comparison
GPT-4o mini vs Olmo 2 0325 32b Instruct
Olmo 2 0325 32b Instruct is the stronger model overall, scoring 32.7 to 25.5 on the Noometry Index.
Last verified . 16 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 16 benchmarks with published results for both. GPT-4o mini scores higher in 3 categories and Olmo 2 0325 32b Instruct in 5 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where Olmo 2 0325 32b Instruct leads 26.8 to 10.4.
- The biggest single-benchmark swing is MMLU-Pro: 60.3% for GPT-4o mini and 41.4% for Olmo 2 0325 32b Instruct.
- Olmo 2 0325 32b Instruct has downloadable open weights; the other is API-only.
Side by side
| GPT-4o mini | Olmo 2 0325 32b Instruct | |
|---|---|---|
| Provider | OpenAI | Allen Institute for AI (Ai2) |
| Noometry Index | 25.5 | 32.7 |
| Released | 2024-07-18 | — |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 16K | — |
| Input $ / M tokens | $0.15 | — |
| Output $ / M tokens | $0.60 | — |
| Results tracked | 60 | 16 |
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Category by category
Coding Olmo 2 0325 32b Instruct leads
GPT-4o mini: 22.0 (#335), Olmo 2 0325 32b Instruct: 35.2 (#227)
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Coding | 1290 | 1210 |
| Aider Polyglot | 3.6% | — |
| WeirdML | 11.8% | — |
| BigCodeBench Instruct | 46.1% | — |
| LiveBench Coding | 43.1% | — |
| BigCodeBench Complete | 57.4% | — |
| HumanEval+ | 83.5% | — |
| MBPP+ | 72.2% | — |
Agentic & Tool Use Not comparable
GPT-4o mini: 27.5 (#101), Olmo 2 0325 32b Instruct: —
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| BALROG | 17.4% | — |
Reasoning Olmo 2 0325 32b Instruct leads
GPT-4o mini: 8.7 (#347), Olmo 2 0325 32b Instruct: 23.6 (#175)
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1267 | 1208 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 10.7% | — |
| Kagi LLM Benchmark | 28.8% | — |
| Chess Puzzles | 0% | — |
| LiveBench Reasoning | 32.8% | — |
| Mystery Game Puzzles | 12% | — |
| DTBench | 54.4% | — |
| LiveBench Data Analysis | 50% | — |
| LMCA | 10.4% | — |
| Epoch Capabilities Index | 126.56 | — |
| LiveBench | 41.3% | — |
| PIQA | 88.7% | — |
Math Olmo 2 0325 32b Instruct leads
GPT-4o mini: 10.4 (#314), Olmo 2 0325 32b Instruct: 26.8 (#255)
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| Omni-MATH | 28% | 16.1% |
| LMArena Math | 1267 | 1208 |
| FrontierMath (Tiers 1-3) | 0.7% | — |
| OTIS Mock AIME 2024-2025 | 6.9% | — |
| LiveBench Math | 36.3% | — |
| MATH Level 5 | 52.6% | — |
| GSM8K | 91.3% | — |
Knowledge Olmo 2 0325 32b Instruct leads
GPT-4o mini: 17.7 (#284), Olmo 2 0325 32b Instruct: 19.5 (#279)
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| MMLU-Pro | 60.3% | 41.4% |
| GPQA (HELM) | 36.8% | 28.7% |
| GPQA Diamond | 37.7% | — |
| SimpleQA Verified | 8.3% | — |
| Confabulations | 37.2% | — |
| LMArena Expert | 1235 | — |
| BoolQ | 88.7% | — |
| MMLU | 81.8% | — |
Multimodal Not comparable
GPT-4o mini: 25.9 (#122), Olmo 2 0325 32b Instruct: —
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Vision | 1066 | — |
| Video-MME | 64.8% | — |
| GeoBench | 64% | — |
| VPCT | 34% | — |
Multilingual GPT-4o mini leads
GPT-4o mini: 42.0 (#199), Olmo 2 0325 32b Instruct: 34.8 (#248)
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Non-English | 1266 | 1160 |
| LMArena Chinese | 1265 | 1192 |
| LMArena Russian | 1275 | 1187 |
| LMArena French | 1297 | — |
| LMArena German | 1272 | — |
| LMArena Japanese | 1216 | — |
| LMArena Korean | 1195 | — |
| LMArena Spanish | 1276 | — |
Instruction Following Too close to call
GPT-4o mini: 61.9 (#239), Olmo 2 0325 32b Instruct: 61.5 (#244)
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| IFEval | 78.2% | 78% |
| LMArena Instruction Following | 1258 | 1186 |
| LiveBench Instruction Following | 56.8% | — |
Long Context GPT-4o mini leads
GPT-4o mini: 39.1 (#186), Olmo 2 0325 32b Instruct: 36.2 (#234)
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1289 | 1194 |
Writing & Preference Olmo 2 0325 32b Instruct leads
GPT-4o mini: 39.5 (#248), Olmo 2 0325 32b Instruct: 42.1 (#236)
| Benchmark | GPT-4o mini | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Text | 1286 | 1218 |
| LMArena Creative Writing | 1268 | 1199 |
| WildBench | 79.1% | 73.4% |
| LMArena Multi-Turn | 1285 | 1221 |
| Short-Story Creative Writing | 67.2% | — |
| EQ-Bench Creative Writing | 873 | — |
| LiveBench Language | 28.6% | — |
Frequently asked questions
Is GPT-4o mini better than Olmo 2 0325 32b Instruct?
Olmo 2 0325 32b Instruct is the stronger model overall, scoring 32.7 to 25.5 on the Noometry Index.
Is GPT-4o mini or Olmo 2 0325 32b Instruct better for coding?
Olmo 2 0325 32b Instruct scores higher on coding benchmarks: 35.2 versus 22.0 in the Noometry coding category.
How many benchmarks do GPT-4o mini and Olmo 2 0325 32b Instruct share?
16 benchmarks have published results for both models. GPT-4o mini has 60 scored results on Noometry and Olmo 2 0325 32b Instruct has 16.