Model comparison
Mercury 2 vs Olmo 2 0325 32b Instruct
Mercury 2 is the stronger model overall, scoring 38.8 to 32.2 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 35.6 to 19.2.
- 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 | 38.8 | 32.2 |
| 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: 33.2 (#250), Olmo 2 0325 32b Instruct: 34.6 (#222)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Coding | 1391 | 1210 |
| LMArena WebDev | 1170 | — |
| SciCode | 38.7% | — |
| WeirdML | 43.2% | — |
| ALE-Bench | 785.58 | — |
Reasoning Too close to call
Mercury 2: 23.0 (#170), Olmo 2 0325 32b Instruct: 22.6 (#174)
| 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: 24.8 (#255)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| Omni-MATH | — | 16.1% |
| LMArena Math | — | 1208 |
Knowledge Mercury 2 leads
Mercury 2: 35.6 (#170), Olmo 2 0325 32b Instruct: 19.2 (#274)
| 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: 46.8 (#153), Olmo 2 0325 32b Instruct: 35.0 (#243)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Non-English | 1331 | 1160 |
| LMArena Chinese | 1416 | 1192 |
| LMArena Russian | 1303 | 1187 |
Instruction Following Mercury 2 leads
Mercury 2: 70.4 (#161), Olmo 2 0325 32b Instruct: 61.8 (#238)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Instruction Following | 1328 | 1186 |
| IFEval | — | 78% |
Long Context Mercury 2 leads
Mercury 2: 40.4 (#149), Olmo 2 0325 32b Instruct: 36.2 (#229)
| Benchmark | Mercury 2 | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1329 | 1194 |
Writing & Preference Mercury 2 leads
Mercury 2: 54.0 (#151), Olmo 2 0325 32b Instruct: 42.3 (#231)
| 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 38.8 to 32.2 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: 34.6 versus 33.2 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.