Model Comparison
Solar Pro 4
vs. Sonar
Comparing 2 AI models · 8 benchmarks · Upstage, Perplexity
Recommended Pick
UpSolar Pro 46 metric winsStrongest on: Throughput, Reasoning, Intelligence
Lowest Price
Sonar
$0.00/1M input price
Best Reasoning
Solar Pro 4
53.3 reasoning score
Blends available reasoning benchmarks
Best for Coding
Solar Pro 4
52.7 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Price gap
Sonar is ∞x cheaper on input tokens than Solar Pro 4.
Reasoning gap
Solar Pro 4 leads Sonar by 15.0 points on reasoning.
Top-pick rationale
Solar Pro 4 wins 6 measurable categories, including Throughput, Reasoning, Intelligence, GPQA.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Solar Pro 4
Upstage
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Sonar
Perplexity
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
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Full Comparison
| Metric | Top Pick Up Solar Pro 4 | Pe Sonar |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.30/1M | $0.00/1M |
| Output Cost | $1.20/1M | $0.00/1M |
| Blended (3:1) | $0.52/1M | — |
| Specifications | ||
| Organization | Upstage | Perplexity |
| Release Date | Aug 6, 2026 | Jan 21, 2025 |
| Performance & Speed | ||
| Throughput | 65.2 tok/s | — |
| TTFT | 1241ms | — |
| Latency | 31924ms | — |
| Composite Indices | ||
| Value Score | 100.0 | — |
| Reasoning Score | 53.3 | 38.3 |
| Intelligence | 41.6 | 9.4 |
| Coding | 52.7 | — |
| Standard Benchmarks | ||
| GPQA | 89.1% | 47.1% |
| MMLU Pro | — | 68.9% |
| HLE | 29.2% | 4.9% |
| LiveCodeBench | — | 29.5% |
| MATH 500 | — | 81.7% |
| AIME (Original) | — | 48.7% |
| SciCode | 43.6% | 22.9% |
| LCR | 70.7% | — |
Key Takeaways
Sonar offers the best value at $0.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Solar Pro 4 has the strongest reasoning profile with a 53.3 reasoning score,combining the available reasoning-heavy benchmarks.
Solar Pro 4 reaches a 52.7 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 4
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
Sonar
- Cost-sensitive applications
- High-volume processing
