Model comparison
Grok 4 vs Solar Pro4
Grok 4 is the stronger model overall, scoring 47.8 to 41.5 on the Noometry Index.
Last verified . 17 shared benchmarks.
UpstageSummary
- They share 17 benchmarks with published results for both. Grok 4 scores higher in 8 categories and Solar Pro4 in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in long context, where Grok 4 leads 63.1 to 42.0.
Side by side
| Grok 4 | Solar Pro4 | |
|---|---|---|
| Provider | xAI | Upstage |
| Noometry Index | 47.8 | 41.5 |
| Released | 2025-07-09 | 2026-08-06 |
| Weights | Proprietary | Proprietary |
| Context window | — | 524K |
| Max output | — | 131K |
| Input $ / M tokens | — | $0.30 |
| Output $ / M tokens | — | $1.20 |
| Results tracked | 48 | 18 |
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Category by category
Coding Grok 4 leads
Grok 4: 49.9 (#44), Solar Pro4: 39.9 (#135)
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Coding | 1408 | 1439 |
| Aider Polyglot | 79.6% | — |
| LMArena WebDev | — | 1371 |
| WeirdML | 45.7% | — |
Agentic & Tool Use Not comparable
Grok 4: 32.1 (#62), Solar Pro4: —
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| Terminal-Bench | 27.2% | — |
| Berkeley Function Calling Leaderboard | 63% | — |
| GDPval | 21.1% | — |
| Cybench | 43% | — |
| DeepResearch Bench | 47.3% | — |
| BALROG | 43.6% | — |
| LMArena Search | 1142 | — |
| METR Time Horizons | 66.6% | — |
Reasoning Grok 4 leads
Grok 4: 36.9 (#59), Solar Pro4: 27.3 (#107)
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1409 | 1398 |
| ARC-AGI-2 | 16% | — |
| SimpleBench | 60.5% | — |
| Kagi LLM Benchmark | 73.6% | — |
| ARC-AGI-1 | 66.7% | — |
| Chess Puzzles | 28% | — |
| Epoch Capabilities Index | 146.46 | — |
| ForecastBench | 60.9 | — |
Math Grok 4 leads
Grok 4: 46.5 (#58), Solar Pro4: 36.1 (#129)
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Math | 1422 | 1418 |
| OTIS Mock AIME 2024-2025 | 84% | — |
| Omni-MATH | 60.3% | — |
| FrontierMath (Feb 2025 set) | 19.7% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge Grok 4 leads
Grok 4: 53.7 (#50), Solar Pro4: 39.0 (#128)
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1417 | 1421 |
| GPQA Diamond | 87% | — |
| MMLU-Pro | 85.1% | — |
| Confabulations | 12.4% | — |
| GPQA (HELM) | 72.7% | — |
Multimodal Not comparable
Grok 4: 33.1 (#89), Solar Pro4: —
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Vision | 1211 | — |
| GeoBench | 45% | — |
Multilingual Grok 4 leads
Grok 4: 52.0 (#98), Solar Pro4: 49.0 (#134)
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1403 | 1362 |
| LMArena Chinese | 1428 | 1417 |
| LMArena French | 1418 | 1403 |
| LMArena German | 1429 | 1351 |
| LMArena Japanese | 1396 | 1300 |
| LMArena Korean | 1376 | 1383 |
| LMArena Russian | 1409 | 1360 |
| LMArena Spanish | 1419 | 1408 |
Instruction Following Grok 4 leads
Grok 4: 79.4 (#4), Solar Pro4: 72.8 (#128)
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1387 | 1376 |
| IFEval | 94.9% | — |
Long Context Grok 4 leads
Grok 4: 63.1 (#4), Solar Pro4: 42.0 (#125)
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1409 | 1379 |
| Fiction.LiveBench | 94.4% | — |
Writing & Preference Grok 4 leads
Grok 4: 58.7 (#111), Solar Pro4: 56.7 (#133)
| Benchmark | Grok 4 | Solar Pro4 |
|---|---|---|
| LMArena Text | 1412 | 1386 |
| LMArena Creative Writing | 1397 | 1313 |
| LMArena Multi-Turn | 1416 | 1391 |
| Short-Story Creative Writing | 76.9% | — |
| WildBench | 79.7% | — |
Frequently asked questions
Is Grok 4 better than Solar Pro4?
Grok 4 is the stronger model overall, scoring 47.8 to 41.5 on the Noometry Index.
Is Grok 4 or Solar Pro4 better for coding?
Grok 4 scores higher on coding benchmarks: 49.9 versus 39.9 in the Noometry coding category.
How many benchmarks do Grok 4 and Solar Pro4 share?
17 benchmarks have published results for both models. Grok 4 has 48 scored results on Noometry and Solar Pro4 has 18.