Model Comparison
Solar Pro 2 (Preview) (Non-reasoning)
vs. Solar Pro 3
Comparing 2 AI models · 11 benchmarks · Upstage
Recommended Pick
UpSolar Pro 33 metric winsStrongest on: Intelligence, GPQA, HLE
Lowest Price
Solar Pro 2 (Preview) (Non-reasoning)
$0.00/1M input price
Best Reasoning
Solar Pro 2 (Preview) (Non-reasoning)
37.0 reasoning score
Blends available reasoning benchmarks
Best for Coding
Solar Pro 3
16.2 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Reasoning gap
Solar Pro 2 (Preview) (Non-reasoning) leads Solar Pro 3 by 4.8 points on reasoning.
Top-pick rationale
Solar Pro 3 wins 3 measurable categories, including Intelligence, GPQA, HLE.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Solar Pro 2 (Preview) (Non-reasoning)
Upstage
TTFT
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Time
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tok/s
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Tokens
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Cost
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Solar Pro 3
Upstage
TTFT
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Time
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tok/s
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Tokens
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Cost
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Which answer was more useful?
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Full Comparison
| Metric | Up Solar Pro 2 (Preview) (Non-reasoning) | Top Pick Up Solar Pro 3 |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $0.00/1M |
| Output Cost | $0.00/1M | $0.00/1M |
| Specifications | ||
| Organization | Upstage | Upstage |
| Release Date | May 20, 2025 | Apr 6, 2026 |
| Performance & Speed | ||
| Throughput | — | — |
| TTFT | — | — |
| Latency | — | — |
| Composite Indices | ||
| Reasoning Score | 37.0 | 32.2 |
| Intelligence | 10.0 | 14.1 |
| Coding | — | 16.2 |
| Standard Benchmarks | ||
| GPQA | 54.4% | 72.4% |
| MMLU Pro | 72.5% | — |
| HLE | 3.8% | 10.1% |
| LiveCodeBench | 38.5% | — |
| MATH 500 | 87.1% | — |
| AIME (Original) | 29.7% | — |
| SciCode | 27.2% | 24.7% |
| LCR | — | 27.0% |
| IFBench | — | 71.2% |
| TAU-bench v2 | — | 86.3% |
| TerminalBench Hard | — | 7.6% |
Key Takeaways
Solar Pro 2 (Preview) (Non-reasoning) offers the best value at $0.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Solar Pro 2 (Preview) (Non-reasoning) has the strongest reasoning profile with a 37.0 reasoning score,combining the available reasoning-heavy benchmarks.
Solar Pro 3 reaches a 16.2 coding index,making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Solar Pro 2 (Preview) (Non-reasoning)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
Solar Pro 3
- Code generation
- Software development
