Model comparison
Mistral Small vs Solar Pro4
Solar Pro4 is the stronger model overall, scoring 42.1 to 33.4 on the Noometry Index. Mistral Small costs 2.0× less per token, which makes it the better buy when Solar Pro4's lead doesn't matter for your workload.
Last verified . 17 shared benchmarks.
Mistral AI
UpstageSummary
- They share 17 benchmarks with published results for both. Mistral Small scores higher in 0 categories and Solar Pro4 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Solar Pro4 leads 38.8 to 16.4.
- Mistral Small is cheaper at $0.15 / $0.60 per million input/output tokens, against $0.30 / $1.20 for Solar Pro4.
- Solar Pro4 accepts more context: 524K tokens versus 262K.
- Mistral Small has downloadable open weights; the other is API-only.
Side by side
| Mistral Small | Solar Pro4 | |
|---|---|---|
| Provider | Mistral AI | Upstage |
| Noometry Index | 33.4 | 42.1 |
| Released | 2024-02-26 | 2026-08-06 |
| Weights | Open | Proprietary |
| Context window | 262K | 524K |
| Max output | 256K | 131K |
| Input $ / M tokens | $0.15 | $0.30 |
| Output $ / M tokens | $0.60 | $1.20 |
| Results tracked | 39 | 18 |
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Category by category
Coding Solar Pro4 leads
Mistral Small: 34.0 (#247), Solar Pro4: 40.1 (#149)
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Coding | 1362 | 1437 |
| LMArena WebDev | — | 1371 |
| SciCode | 26.5% | — |
| BigCodeBench Instruct | 36.1% | — |
| LiveBench Coding | 36.2% | — |
| BigCodeBench Complete | 46.6% | — |
| ALE-Bench | 497.62 | — |
Agentic & Tool Use Not comparable
Mistral Small: 28.1 (#93), Solar Pro4: —
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 37.1% | — |
Reasoning Solar Pro4 leads
Mistral Small: 19.8 (#250), Solar Pro4: 28.5 (#104)
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1335 | 1399 |
| Kagi LLM Benchmark | 37.8% | — |
| CritPt | 0% | — |
| LiveBench Reasoning | 44.8% | — |
| DTBench | 70.9% | — |
| LiveBench Data Analysis | 53.7% | — |
| LMCA | 20.6% | — |
| LiveBench | 44% | — |
Math Solar Pro4 leads
Mistral Small: 16.4 (#293), Solar Pro4: 38.8 (#128)
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Math | 1341 | 1416 |
| OTIS Mock AIME 2024-2025 | 5.8% | — |
| LiveBench Math | 39.9% | — |
| MATH Level 5 | 46.8% | — |
Knowledge Solar Pro4 leads
Mistral Small: 31.0 (#222), Solar Pro4: 39.8 (#129)
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1291 | 1427 |
| GPQA Diamond | 47.5% | — |
| Vectara Hallucination Rate | 5.1% | — |
| MMLU | 68.7% | — |
Multimodal Not comparable
Mistral Small: 33.5 (#96), Solar Pro4: —
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Vision | 1142 | — |
Multilingual Solar Pro4 leads
Mistral Small: 45.5 (#169), Solar Pro4: 48.7 (#139)
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1315 | 1361 |
| LMArena Chinese | 1340 | 1415 |
| LMArena French | 1337 | 1397 |
| LMArena German | 1340 | 1364 |
| LMArena Japanese | 1275 | 1309 |
| LMArena Korean | 1259 | 1382 |
| LMArena Russian | 1324 | 1360 |
| LMArena Spanish | 1346 | 1401 |
Instruction Following Solar Pro4 leads
Mistral Small: 66.4 (#209), Solar Pro4: 72.7 (#132)
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1310 | 1377 |
| LiveBench Instruction Following | 63.7% | — |
Long Context Solar Pro4 leads
Mistral Small: 40.4 (#156), Solar Pro4: 42.1 (#130)
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1327 | 1381 |
Writing & Preference Solar Pro4 leads
Mistral Small: 52.5 (#171), Solar Pro4: 56.5 (#138)
| Benchmark | Mistral Small | Solar Pro4 |
|---|---|---|
| LMArena Text | 1338 | 1386 |
| LMArena Creative Writing | 1305 | 1316 |
| LMArena Multi-Turn | 1344 | 1385 |
| LiveBench Language | 30.5% | — |
Frequently asked questions
Is Mistral Small better than Solar Pro4?
Solar Pro4 is the stronger model overall, scoring 42.1 to 33.4 on the Noometry Index. Mistral Small costs 2.0× less per token, which makes it the better buy when Solar Pro4's lead doesn't matter for your workload.
Which is cheaper, Mistral Small or Solar Pro4?
Mistral Small is cheaper. It lists at $0.15 per million input tokens and $0.60 per million output tokens; Solar Pro4 lists at $0.30 and $1.20.
Is Mistral Small or Solar Pro4 better for coding?
Solar Pro4 scores higher on coding benchmarks: 40.1 versus 34.0 in the Noometry coding category.
Which has the bigger context window?
Solar Pro4 does, with 524K tokens against 262K.
How many benchmarks do Mistral Small and Solar Pro4 share?
17 benchmarks have published results for both models. Mistral Small has 39 scored results on Noometry and Solar Pro4 has 18.