Model Comparison
Sonar Reasoning Pro
vs. Tri-21B-Think
Sonar Reasoning Pro has not been available at LLMBase since 26 October 2026. See all open-weight models →
Comparing 2 AI models · 0 benchmarks · Perplexity, Trillion Labs
Live compare
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
10 comparisons left in 24h
Sonar Reasoning Pro
Perplexity
TTFT
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Time
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tok/s
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Cost
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Waiting
Tri-21B-Think
Trillion Labs
TTFT
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Time
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tok/s
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Waiting
Which answer was more useful?
EU-hosted open models, one API
Servers in Germany & Finland. Operated by a German company under the GDPR, DPA available, ISO 27001-certified data centres.
Full Comparison
| Metric | Pe Sonar Reasoning Pro | Tr Tri-21B-Think |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | — | — |
| Output Cost | — | — |
| Specifications | ||
| Organization | Perplexity | Trillion Labs |
| Release Date | Jan 28, 2025 | Feb 10, 2026 |
| Performance & Speed | ||
| Throughput | — | — |
| TTFT | — | — |
| Latency | — | — |
Key Takeaways
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Pe
Sonar Reasoning Pro
- General-purpose AI
- Versatile applications
Tr
Tri-21B-Think
- General-purpose AI
- Versatile applications
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