Model Comparison
Reka Flash (Sep '24)
vs. Sonar Reasoning Pro
Comparing 2 AI models · 0 benchmarks · Reka AI, Perplexity
Recommended Pick
PeSonar Reasoning Pro2 metric winsStrongest on: Reasoning, Intelligence
Lowest Price
Reka Flash (Sep '24)
$0.20/1M input price
Best Reasoning
Sonar Reasoning Pro
11.8 reasoning score
Blends available reasoning benchmarks
Differences That Matter
Reasoning gap
Sonar Reasoning Pro leads Reka Flash (Sep '24) by 5.4 points on reasoning.
Top-pick rationale
Sonar Reasoning Pro 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.
Reka Flash (Sep '24)
Reka AI
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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Sonar Reasoning Pro
Perplexity
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?
Secure AI Chat made in Europe
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EU-hosted inference
Servers in Germany & Finland. Designed to meet strict GDPR and ISO 27001 compliance requirements.
Full Comparison
| Metric | Re Reka Flash (Sep '24) | Top Pick Pe Sonar Reasoning Pro |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.20/1M | — |
| Output Cost | $0.80/1M | — |
| Blended (3:1) | $0.35/1M | — |
| Specifications | ||
| Organization | Reka AI | Perplexity |
| Release Date | Oct 4, 2024 | Jan 28, 2025 |
| Performance & Speed | ||
| Throughput | — | — |
| TTFT | — | — |
| Latency | — | — |
| Composite Indices | ||
| Value Score | 100.0 | — |
| Reasoning Score | 6.4 | 11.8 |
| Intelligence | 6.4 | 11.8 |
Key Takeaways
Reka Flash (Sep '24) offers the best value at $0.20/1M,making it ideal for high-volume applications and cost-conscious projects.
Sonar Reasoning Pro has the strongest reasoning profile with a 11.8 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
Reka Flash (Sep '24)
- Cost-sensitive applications
- High-volume processing
Sonar Reasoning Pro
- Complex reasoning tasks
- Research & analysis
