Model Comparison
Sonar Reasoning Pro
vs. Gemini 3.7 Flash (high)
Comparing 2 AI models · 6 benchmarks · Perplexity, Google
Recommended Pick
PeSonar Reasoning Pro4 metric winsStrongest on: Input price, Output price, TTFT
Lowest Price
Sonar Reasoning Pro
$0.00/1M input price
Best Reasoning
Gemini 3.7 Flash (high)
66.1 reasoning score
Blends available reasoning benchmarks
Best for Coding
Gemini 3.7 Flash (high)
76.1 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 Reasoning Pro is ∞x cheaper on input tokens than Gemini 3.7 Flash (high).
Reasoning gap
Gemini 3.7 Flash (high) leads Sonar Reasoning Pro by 1.9 points on reasoning.
Top-pick rationale
Sonar Reasoning Pro wins 4 measurable categories, including Input price, Output price, TTFT, Latency.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Sonar Reasoning Pro
Perplexity
TTFT
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Time
—
tok/s
—
Tokens
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Cost
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Gemini 3.7 Flash (high)
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
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Full Comparison
| Metric | Top Pick Pe Sonar Reasoning Pro | Go Gemini 3.7 Flash (high) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $0.75/1M |
| Output Cost | $0.00/1M | $3.75/1M |
| Blended (3:1) | — | $1.50/1M |
| Specifications | ||
| Organization | Perplexity | |
| Release Date | Jan 28, 2025 | Aug 13, 2026 |
| Performance & Speed | ||
| Throughput | — | 515.0 tok/s |
| TTFT | — | 6354ms |
| Latency | — | 6354ms |
| Composite Indices | ||
| Value Score | — | 100.0 |
| Reasoning Score | 64.2 | 66.1 |
| Intelligence | 18.0 | 56.0 |
| Coding | — | 76.1 |
| Standard Benchmarks | ||
| GPQA | — | 94.5% |
| HLE | — | 47.9% |
| MATH 500 | 95.7% | — |
| AIME (Original) | 79.0% | — |
| SciCode | — | 56.8% |
| LCR | — | 80.0% |
Key Takeaways
Sonar Reasoning Pro offers the best value at $0.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Gemini 3.7 Flash (high) has the strongest reasoning profile with a 66.1 reasoning score,combining the available reasoning-heavy benchmarks.
Gemini 3.7 Flash (high) reaches a 76.1 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
Sonar Reasoning Pro
- Cost-sensitive applications
- High-volume processing
Gemini 3.7 Flash (high)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
