Model Comparison
Solar Pro 2 (Preview) (Non-reasoning)
vs. Sonar Reasoning Pro
Comparing 2 AI models · 7 benchmarks · Upstage, Perplexity
Recommended Pick
PeSonar Reasoning Pro4 metric winsStrongest on: Reasoning, Intelligence, MATH 500
Lowest Price
Solar Pro 2 (Preview) (Non-reasoning)
$0.00/1M input price
Best Reasoning
Sonar Reasoning Pro
64.2 reasoning score
Blends available reasoning benchmarks
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Reasoning gap
Sonar Reasoning Pro leads Solar Pro 2 (Preview) (Non-reasoning) by 27.2 points on reasoning.
Top-pick rationale
Sonar Reasoning Pro wins 4 measurable categories, including Reasoning, Intelligence, MATH 500, AIME (Original).
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
—
Time
—
tok/s
—
Tokens
—
Cost
—
Sonar Reasoning Pro
Perplexity
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Chat with leading AI models
Use Claude, ChatGPT, Gemini alongside with EU-Hosted Models like Deepseek, Qwen & Kimi.
EU-hosted inference
Servers in Germany & Finland. Designed to meet strict GDPR and ISO 27001 compliance requirements.
Full Comparison
| Metric | Up Solar Pro 2 (Preview) (Non-reasoning) | Top Pick Pe Sonar Reasoning Pro |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $0.00/1M |
| Output Cost | $0.00/1M | $0.00/1M |
| Specifications | ||
| Organization | Upstage | Perplexity |
| Release Date | May 20, 2025 | Jan 28, 2025 |
| Performance & Speed | ||
| Throughput | — | — |
| TTFT | — | — |
| Latency | — | — |
| Composite Indices | ||
| Reasoning Score | 37.0 | 64.2 |
| Intelligence | 10.0 | 17.8 |
| Standard Benchmarks | ||
| GPQA | 54.4% | — |
| MMLU Pro | 72.5% | — |
| HLE | 3.8% | — |
| LiveCodeBench | 38.5% | — |
| MATH 500 | 87.1% | 95.7% |
| AIME (Original) | 29.7% | 79.0% |
| SciCode | 27.2% | — |
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.
Sonar Reasoning Pro has the strongest reasoning profile with a 64.2 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) (Non-reasoning)
- Cost-sensitive applications
- High-volume processing
Sonar Reasoning Pro
- Complex reasoning tasks
- Research & analysis
