Model comparison
Olmo 3.1 32b Instruct vs Solar Pro4
Solar Pro4 is the stronger model overall, scoring 42.1 to 39.4 on the Noometry Index.
Last verified . 16 shared benchmarks.
Allen Institute for AI (Ai2)
UpstageSummary
- They share 16 benchmarks with published results for both. Olmo 3.1 32b Instruct scores higher in 0 categories and Solar Pro4 in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Solar Pro4 leads 56.5 to 50.2.
- Olmo 3.1 32b Instruct has downloadable open weights; the other is API-only.
Side by side
| Olmo 3.1 32b Instruct | Solar Pro4 | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | Upstage |
| Noometry Index | 39.4 | 42.1 |
| Released | — | 2026-08-06 |
| Weights | Open | Proprietary |
| Context window | — | 524K |
| Max output | — | 131K |
| Input $ / M tokens | — | $0.30 |
| Output $ / M tokens | — | $1.20 |
| Results tracked | 16 | 18 |
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Category by category
Coding Too close to call
Olmo 3.1 32b Instruct: 39.5 (#157), Solar Pro4: 40.1 (#149)
| Benchmark | Olmo 3.1 32b Instruct | Solar Pro4 |
|---|---|---|
| LMArena Coding | 1347 | 1437 |
| LMArena WebDev | — | 1371 |
Reasoning Solar Pro4 leads
Olmo 3.1 32b Instruct: 26.4 (#132), Solar Pro4: 28.5 (#104)
| Benchmark | Olmo 3.1 32b Instruct | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1322 | 1399 |
Math Solar Pro4 leads
Olmo 3.1 32b Instruct: 36.3 (#167), Solar Pro4: 38.8 (#128)
| Benchmark | Olmo 3.1 32b Instruct | Solar Pro4 |
|---|---|---|
| LMArena Math | 1305 | 1416 |
Knowledge Solar Pro4 leads
Olmo 3.1 32b Instruct: 36.1 (#175), Solar Pro4: 39.8 (#129)
| Benchmark | Olmo 3.1 32b Instruct | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1308 | 1427 |
Multilingual Solar Pro4 leads
Olmo 3.1 32b Instruct: 42.6 (#191), Solar Pro4: 48.7 (#139)
| Benchmark | Olmo 3.1 32b Instruct | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1275 | 1361 |
| LMArena Chinese | 1304 | 1415 |
| LMArena French | 1328 | 1397 |
| LMArena German | 1282 | 1364 |
| LMArena Korean | 1206 | 1382 |
| LMArena Russian | 1268 | 1360 |
| LMArena Spanish | 1336 | 1401 |
| LMArena Japanese | — | 1309 |
Instruction Following Solar Pro4 leads
Olmo 3.1 32b Instruct: 68.6 (#187), Solar Pro4: 72.7 (#132)
| Benchmark | Olmo 3.1 32b Instruct | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1299 | 1377 |
Long Context Solar Pro4 leads
Olmo 3.1 32b Instruct: 39.9 (#166), Solar Pro4: 42.1 (#130)
| Benchmark | Olmo 3.1 32b Instruct | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1312 | 1381 |
Writing & Preference Solar Pro4 leads
Olmo 3.1 32b Instruct: 50.2 (#185), Solar Pro4: 56.5 (#138)
| Benchmark | Olmo 3.1 32b Instruct | Solar Pro4 |
|---|---|---|
| LMArena Text | 1311 | 1386 |
| LMArena Creative Writing | 1264 | 1316 |
| LMArena Multi-Turn | 1309 | 1385 |
Frequently asked questions
Is Olmo 3.1 32b Instruct better than Solar Pro4?
Solar Pro4 is the stronger model overall, scoring 42.1 to 39.4 on the Noometry Index.
Is Olmo 3.1 32b Instruct or Solar Pro4 better for coding?
They score almost the same on coding (39.5 vs 40.1); test both on your own repository before choosing.
How many benchmarks do Olmo 3.1 32b Instruct and Solar Pro4 share?
16 benchmarks have published results for both models. Olmo 3.1 32b Instruct has 16 scored results on Noometry and Solar Pro4 has 18.