Model Comparison
Solar Pro 2 (Preview) (Reasoning)
vs. Sonar
Comparing 2 AI models · 0 benchmarks · Upstage, Perplexity
Recommended Pick
UpSolar Pro 2 (Preview) (Reasoning)2 metric winsStrongest on: Reasoning, Intelligence
Best Reasoning
Solar Pro 2 (Preview) (Reasoning)
12.5 reasoning score
Blends available reasoning benchmarks
Differences That Matter
Reasoning gap
Solar Pro 2 (Preview) (Reasoning) leads Sonar by 3.1 points on reasoning.
Top-pick rationale
Solar Pro 2 (Preview) (Reasoning) wins 2 measurable categories, including Reasoning, Intelligence.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Solar Pro 2 (Preview) (Reasoning)
Upstage
TTFT
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Time
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tok/s
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Sonar
Perplexity
TTFT
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tok/s
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Tokens
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Which answer was more useful?
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OpenAI-compatible inference
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Full Comparison
| Metric | Top Pick Up Solar Pro 2 (Preview) (Reasoning) | Pe Sonar |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | — | — |
| Output Cost | — | — |
| Specifications | ||
| Organization | Upstage | Perplexity |
| Release Date | May 20, 2025 | Jan 21, 2025 |
| Performance & Speed | ||
| Throughput | — | — |
| TTFT | — | — |
| Latency | — | — |
| Composite Indices | ||
| Reasoning Score | 12.5 | 9.4 |
| Intelligence | 12.5 | 9.4 |
Key Takeaways
Solar Pro 2 (Preview) (Reasoning) has the strongest reasoning profile with a 12.5 reasoning score,combining the available reasoning-heavy benchmarks.
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) (Reasoning)
- Complex reasoning tasks
- Research & analysis
Sonar
- General-purpose AI
- Versatile applications
