Model comparison
GPT-5.2 Pro vs Solar Pro 3
GPT-5.2 Pro has enough public results to be ranked (#39); 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 GPT-5.2 Pro leads 51.5 to 22.4.
- Solar Pro 3 is cheaper at $0.25 / $0.25 per million input/output tokens, against $21 / $168 for GPT-5.2 Pro.
- GPT-5.2 Pro accepts more context: 400K tokens versus 131K.
Side by side
| GPT-5.2 Pro | Solar Pro 3 | |
|---|---|---|
| Provider | OpenAI | Upstage |
| Noometry Index | 52.3 | 33.9 |
| Released | 2025-12-11 | 2026-01 |
| Weights | Proprietary | Proprietary |
| Context window | 400K | 131K |
| Max output | 128K | 8K |
| Input $ / M tokens | $21 | $0.25 |
| Output $ / M tokens | $168 | $0.25 |
| Results tracked | 8 | 2 |
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Category by category
Coding Not comparable
GPT-5.2 Pro: —, Solar Pro 3: 34.8
| Benchmark | GPT-5.2 Pro | Solar Pro 3 |
|---|---|---|
| SciCode | — | 24.7% |
Reasoning GPT-5.2 Pro leads
GPT-5.2 Pro: 51.5 (#33), Solar Pro 3: 22.4
| Benchmark | GPT-5.2 Pro | Solar Pro 3 |
|---|---|---|
| ARC-AGI-2 | 54.2% | — |
| SimpleBench | 57.4% | — |
| NYT Connections (extended) | 79.3% | — |
| ARC-AGI-1 | 90.5% | — |
| CritPt | — | 0% |
| Epoch Capabilities Index | 155.4 | — |
Math Not comparable
GPT-5.2 Pro: 65.3 (#29), Solar Pro 3: —
| Benchmark | GPT-5.2 Pro | Solar Pro 3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74% | — |
| FrontierMath Tier 4 | 46% | — |
| FrontierMath Tier 4 (v1) | 31.3% | — |
Frequently asked questions
Is GPT-5.2 Pro better than Solar Pro 3?
GPT-5.2 Pro has enough public results to be ranked (#39); Solar Pro 3 does not yet, so treat this comparison as directional.
Which is cheaper, GPT-5.2 Pro 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; GPT-5.2 Pro lists at $21 and $168.
Which has the bigger context window?
GPT-5.2 Pro does, with 400K tokens against 131K.
How many benchmarks do GPT-5.2 Pro and Solar Pro 3 share?
0 benchmarks have published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and Solar Pro 3 has 2.