Model comparison
Mercury 2 vs Olmo 2 0325 32b Instruct
Mercury 2 is the stronger model overall, scoring 39.1 to 32.7 on the Noometry Index.
Last verified . 10 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 10 benchmarks with published results for both. Mercury 2 scores higher in 6 categories and Olmo 2 0325 32b Instruct in 1 category; 6 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Mercury 2 leads 36.2 to 19.5.
- Olmo 2 0325 32b Instruct has downloadable open weights; the other is API-only.
Side by side
| Mercury 2 | Olmo 2 0325 32b Instruct | |
|---|---|---|
| Provider | Inception | Allen Institute for AI (Ai2) |
| Noometry Index | 39.1 | 32.7 |
| Released | 2026-02-20 | — |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 50K | — |
| Input $ / M tokens | $0.25 | — |
| Output $ / M tokens | $0.75 | — |
| Results tracked | 17 | 16 |
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Category by category
Coding Olmo 2 0325 32b Instruct leads
Mercury 2: 33.5 (#255), Olmo 2 0325 32b Instruct: 35.2 (#227)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Coding | 1391 | 1210 |
| LMArena WebDev | 1171 | — |
| SciCode | 38.7% | — |
| WeirdML | 43.2% | — |
| ALE-Bench | 785.58 | — |
Reasoning Too close to call
Mercury 2: 23.8 (#170), Olmo 2 0325 32b Instruct: 23.6 (#175)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1362 | 1208 |
| CritPt | 0.8% | — |
Math Not comparable
Mercury 2: —, Olmo 2 0325 32b Instruct: 26.8 (#255)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| Omni-MATH | — | 16.1% |
| LMArena Math | — | 1208 |
Knowledge Mercury 2 leads
Mercury 2: 36.2 (#172), Olmo 2 0325 32b Instruct: 19.5 (#279)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| MMLU-Pro | — | 41.4% |
| Vectara Hallucination Rate | 12.3% | — |
| GPQA (HELM) | — | 28.7% |
| LMArena Expert | 1358 | — |
Multilingual Mercury 2 leads
Mercury 2: 46.6 (#157), Olmo 2 0325 32b Instruct: 34.8 (#248)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Non-English | 1331 | 1160 |
| LMArena Chinese | 1417 | 1192 |
| LMArena Russian | 1304 | 1187 |
Instruction Following Mercury 2 leads
Mercury 2: 70.2 (#165), Olmo 2 0325 32b Instruct: 61.5 (#244)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Instruction Following | 1329 | 1186 |
| IFEval | — | 78% |
Long Context Mercury 2 leads
Mercury 2: 40.5 (#154), Olmo 2 0325 32b Instruct: 36.2 (#234)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1330 | 1194 |
Writing & Preference Mercury 2 leads
Mercury 2: 53.8 (#155), Olmo 2 0325 32b Instruct: 42.1 (#236)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Text | 1355 | 1218 |
| LMArena Creative Writing | 1289 | 1199 |
| LMArena Multi-Turn | 1358 | 1221 |
| WildBench | — | 73.4% |
Frequently asked questions
Is Mercury 2 better than Olmo 2 0325 32b Instruct?
Mercury 2 is the stronger model overall, scoring 39.1 to 32.7 on the Noometry Index.
Is Mercury 2 or Olmo 2 0325 32b Instruct better for coding?
Olmo 2 0325 32b Instruct scores higher on coding benchmarks: 35.2 versus 33.5 in the Noometry coding category.
How many benchmarks do Mercury 2 and Olmo 2 0325 32b Instruct share?
10 benchmarks have published results for both models. Mercury 2 has 17 scored results on Noometry and Olmo 2 0325 32b Instruct has 16.