Specifications
Context Window
—
Input Price/1M
—
Output Price/1M
—
Parameters
—
Benchmarks
Solar Pro 2 (Preview) (Reasoning) results on the main AI model evaluation benchmarks. Higher scores indicate better performance.
Coding
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| LiveCodeBench | 46.0 | 100.0 | — |
| SciCode | 16.0 | 100.0 | — |
Knowledge
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| MMLU-Pro | 77.0 | 100.0 | — |
overall
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| AA Intelligence Index | 12.5 | 100.0 | — |
Reasoning
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| GPQA Diamond | 58.0 | 100.0 | — |
| HLE | 6.0 | 100.0 | — |
Information
- Release date
- May 20, 2025
- Tool Calling
- ❌ Not supported
- Vision
- ❌ Not supported
- Audio
- ❌ Not supported
Full Analysis: Solar Pro 2 (Preview) (Reasoning)
What is Solar Pro 2 (Preview) (Reasoning)?
Solar Pro 2 (Preview) (Reasoning) is an AI model developed by Upstage, classified as a text model. It focuses on text processing and natural language generation. As a proprietary model, it is available via Upstage's cloud API.
Pricing & Costs in 2026
Solar Pro 2 (Preview) (Reasoning) does not have public per-token pricing available at this time. Some models offer access via enterprise plans or research programs. Check Upstage's official website for up-to-date availability and pricing.
Benchmarks & Performance
Solar Pro 2 (Preview) (Reasoning) was evaluated on 6 different benchmarks, covering categories like Coding, Knowledge, overall, Reasoning. Results show moderate performance across available evaluations.
It's important to note that benchmarks measure specific aspects and don't capture the full user experience. Factors like instruction adherence, behavior in long conversations, and real-world task quality vary significantly between models and aren't always reflected in standard scores.
Recommended Use Cases
Solar Pro 2 (Preview) (Reasoning) specializes in text, offering advanced capabilities for creating and processing text content.
Comparison with Alternatives
In the 2026 AI model ecosystem, Solar Pro 2 (Preview) (Reasoning) competes directly with similarly capable models. Upstage competes in this segment against OpenAI, Anthropic, Google, and Meta. The choice between models depends on the specific use case, budget, latency requirements, and need for features like multimodality and tool calling.
For a detailed side-by-side comparison, use our comparison tool or check the overall model ranking.
Frequently Asked Questions
What is Solar Pro 2 (Preview) (Reasoning)?
Solar Pro 2 (Preview) (Reasoning) is an AI model developed by Upstage. It is a text model.
How much does Solar Pro 2 (Preview) (Reasoning) cost?
Solar Pro 2 (Preview) (Reasoning) does not have public per-token pricing available at this time. Check Upstage's official website for up-to-date information.
How does Solar Pro 2 (Preview) (Reasoning) compare with other models?
In available benchmarks, Solar Pro 2 (Preview) (Reasoning) scored: LiveCodeBench: 46/100, SciCode: 16/100, MMLU-Pro: 77/100. See the full table above for a detailed comparison.
Is Solar Pro 2 (Preview) (Reasoning) open source?
No, Solar Pro 2 (Preview) (Reasoning) is a proprietary model from Upstage. It is available via cloud API. For open source alternatives, check our open source model ranking.
What is Solar Pro 2 (Preview) (Reasoning) best for?
Solar Pro 2 (Preview) (Reasoning) excels at general-purpose language tasks.
Last updated: June 22, 2026 • View methodology →