Model comparison
Claude Opus 4.5 vs Solar Pro 3
Claude Opus 4.5 has enough public results to be ranked (#47); Solar Pro 3 does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
UpstageSummary
- The widest gap is in reasoning, where Claude Opus 4.5 leads 42.6 to 22.4.
- Solar Pro 3 is cheaper at $0.25 / $0.25 per million input/output tokens, against $5 / $25 for Claude Opus 4.5.
- Claude Opus 4.5 accepts more context: 200K tokens versus 131K.
Side by side
| Claude Opus 4.5 | Solar Pro 3 | |
|---|---|---|
| Provider | Anthropic | Upstage |
| Noometry Index | 50.5 | 33.9 |
| Released | 2025-11-01 | 2026-01 |
| Weights | Proprietary | Proprietary |
| Context window | 200K | 131K |
| Max output | 64K | 8K |
| Input $ / M tokens | $5 | $0.25 |
| Output $ / M tokens | $25 | $0.25 |
| Results tracked | 69 | 2 |
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Category by category
Coding Claude Opus 4.5 leads
Claude Opus 4.5: 54.8 (#27), Solar Pro 3: 34.8
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| SWE-bench Verified | 76.7% | — |
| SWE-bench Verified (bash only) | 76.8% | — |
| LMArena WebDev | 1494 | — |
| SWE-bench Multilingual | 70.7% | — |
| SciCode | — | 24.7% |
| GSO | 26.5% | — |
| WeirdML | 63.7% | — |
| LMArena Coding | 1504 | — |
| ALE-Bench | 1,025 | — |
| AlgoTune | 1.77 | — |
Agentic & Tool Use Not comparable
Claude Opus 4.5: 47.3 (#12), Solar Pro 3: —
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| Terminal-Bench | 63.1% | — |
| Berkeley Function Calling Leaderboard | 77.5% | — |
| GDPval | 45.5% | — |
| Remote Labor Index | 3.8% | — |
| τ²-bench Airline | 84% | — |
| τ²-bench Banking | 24.7% | — |
| τ²-bench Retail | 79.6% | — |
| τ²-bench Telecom | 92.3% | — |
| Cybench | 82% | — |
| DeepResearch Bench | 54.8% | — |
| OSWorld | 66.3% | — |
| BALROG | 43.5% | — |
| LMArena Search | 1180 | — |
| METR Time Horizons | 75% | — |
| Vending-Bench 2 | 4,967 | — |
Reasoning Claude Opus 4.5 leads
Claude Opus 4.5: 42.6 (#51), Solar Pro 3: 22.4
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| ARC-AGI-2 | 37.6% | — |
| SimpleBench | 62% | — |
| Kagi LLM Benchmark | 80.2% | — |
| NYT Connections (extended) | 52.5% | — |
| ARC-AGI-1 | 80% | — |
| CritPt | — | 0% |
| Chess Puzzles | 12% | — |
| EnigmaEval | 11.9% | — |
| EBR-Bench | 14.3% | — |
| LMArena Hard Prompts | 1476 | — |
| Mystery Game Puzzles | 22% | — |
| DTBench | 89.9% | — |
| LMCA | 44.5% | — |
| Epoch Capabilities Index | 150.09 | — |
| ForecastBench | 60.7 | — |
Math Not comparable
Claude Opus 4.5: 38.6 (#132), Solar Pro 3: —
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 34.4% | — |
| FrontierMath Tier 4 | 4.9% | — |
| OTIS Mock AIME 2024-2025 | 86.1% | — |
| ProofBench | 36% | — |
| LMArena Math | 1463 | — |
| FrontierMath (Feb 2025 set) | 20.7% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Not comparable
Claude Opus 4.5: 56.5 (#44), Solar Pro 3: —
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| GPQA Diamond | 86% | — |
| Humanity's Last Exam | 25.2% | — |
| SimpleQA Verified | 45.7% | — |
| Vectara Hallucination Rate | 10.9% | — |
| LMArena Expert | 1487 | — |
Multimodal Not comparable
Claude Opus 4.5: 31.4 (#107), Solar Pro 3: —
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| GeoBench | 75% | — |
| VPCT | 40% | — |
| Furniture Assembly | 28.3% | — |
| LMArena Document | 1462 | — |
Multilingual Not comparable
Claude Opus 4.5: 54.3 (#47), Solar Pro 3: —
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| LMArena Non-English | 1438 | — |
| LMArena Chinese | 1470 | — |
| LMArena French | 1471 | — |
| LMArena German | 1449 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1424 | — |
| LMArena Russian | 1447 | — |
| LMArena Spanish | 1458 | — |
Instruction Following Not comparable
Claude Opus 4.5: 77.5 (#19), Solar Pro 3: —
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| LMArena Instruction Following | 1478 | — |
Long Context Not comparable
Claude Opus 4.5: 46.5 (#22), Solar Pro 3: —
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| CL-bench | 21.1% | — |
| LMArena Longer Query | 1480 | — |
Writing & Preference Not comparable
Claude Opus 4.5: 68.1 (#28), Solar Pro 3: —
| Benchmark | Claude Opus 4.5 | Solar Pro 3 |
|---|---|---|
| LMArena Text | 1451 | — |
| LMArena Creative Writing | 1445 | — |
| EQ-Bench Creative Writing | 1687 | — |
| LMArena Multi-Turn | 1466 | — |
Frequently asked questions
Is Claude Opus 4.5 better than Solar Pro 3?
Claude Opus 4.5 has enough public results to be ranked (#47); Solar Pro 3 does not yet, so treat this comparison as directional.
Which is cheaper, Claude Opus 4.5 or Solar Pro 3?
Solar Pro 3 is cheaper. It lists at $0.25 per million input tokens and $0.25 per million output tokens; Claude Opus 4.5 lists at $5 and $25.
Is Claude Opus 4.5 or Solar Pro 3 better for coding?
Claude Opus 4.5 scores higher on coding benchmarks: 54.8 versus 34.8 in the Noometry coding category.
Which has the bigger context window?
Claude Opus 4.5 does, with 200K tokens against 131K.
How many benchmarks do Claude Opus 4.5 and Solar Pro 3 share?
0 benchmarks have published results for both models. Claude Opus 4.5 has 69 scored results on Noometry and Solar Pro 3 has 2.