- MMLU PRO (0-shot, CoT) 81.2
- GPQA-Diamond 71.9
- HLE 11.9
- HMMT'26 65.9
- AIME'26 83
- LCB.v1-6 (cumulative) 77.7
- Tau2-all 72.3
- Terminal Bench 2 10.1
- IFBench 73.1
- Arena-hard-v2 74.7
- Ko-Arena-hard-v2 78.2
Solar Pro 3 (March 2026 update)
Solar Pro 3 (March 2026 update).
11
Benchmarks with a score
0
Ranked first, out of five or more models
0
In the top three
Upstage Mar 2026 Solar Pro 3 (March 2026 update)
Closed weights Flagship
No Epoch Capabilities Index score yet
- IFBench 73.1% #28 /70
- tau2-bench 72.3% #49 /69
- MMLU-Pro 81.2% #64 /151
Where it ranks
Its best score on each benchmark, and where that ranks among every model with a score there. We rank each model once, at its best setting.
Knowledge and language
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| Arena-Hard v2.0 | 74.7% | #8 of 24 | Model card | |
| IFBench | 73.1% | #28 of 70 | Model card | |
| MMLU-Pro | 81.2% | #64 of 151 | Model card | |
| Humanity's Last Exam | 11.9% | #125 of 147 | Model card | |
| Ko-Arena-Hard v2 (Upstage) | 78.2% | #2 of 2 | Model card |
Math and science
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| GPQA Diamond | 71.9% | #157 of 284 | Model card | |
| AIME 2026 | 83% | #32 of 34 | Model card | |
| HMMT 2026 | 65.9% | #18 of 18 | Model card |
Coding
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| LiveCodeBench v6 | 77.7% | #35 of 76 | Model card |
Agents and tools
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| tau2-bench | 72.3% | #49 of 69 | Model card | |
| Terminal-Bench 2.0 | 10.1% | #61 of 61 | Model card |
Its launch post
The benchmarks the lab chose to headline, with the scores it gave.