LLM Comparison
Qwen3.5-27B vs Sonar Reasoning Pro
Side-by-side specs, pricing & capabilities · Updated April 2026
Price vs Intelligence
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2/6 modelsSame tier:
S Sonar Reasoning Pro | ||
|---|---|---|
| Organization | Perplexity AI | |
| OpenTools Score | 73 82.7 | 62 12.4 |
| Family | Qwen | Sonar |
| Status | Current | Current |
| Release Date | Feb 2026 | Mar 2025 |
| Context Window | 262K tokens | 128K tokens |
| Input Price | $0.20/M tokens | $2.00/M tokens |
| Output Price | $1.56/M tokens | $8.00/M tokens |
| Capabilities | textvisionvideocode | textvisioncodeextended-thinking |
| Max Output | 66K tokens | — |
| API Identifier | qwen/qwen3.5-27b | perplexity/sonar-reasoning-pro |
| Benchmarks | ||
| MMLU-Pro | 86.1alibaba | — |
| GPQA Diamond | 85.5alibaba | 62.3perplexity |
| SWE-bench Verified | 72.4alibaba | — |
| MathVision | 86alibaba | — |
| TAU2-Bench | 79alibaba | — |
| IFEval | 91.5alibaba | — |
| MATH-500 | — | 92.1perplexity |
| AIME | — | 77perplexity |
| MMLU Pro | — | 79perplexity |
| View Qwen3.5-27B | View Sonar Reasoning Pro | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Qwen3.5-27BCheapest | $0.20 | $0.78 | $0.98 | — |
| Sonar Reasoning Pro | $2.00 | $4.00 | $6.00 | +515% |
Alibaba
Qwen3.5-27B
Qwen3.5-27B is a multimodal llm from Alibaba. Supports up to 262,144 token context window. Achieves 87.5% on MMLU. Available from $0.20/M input tokens.
Perplexity AI
Sonar Reasoning Pro
Sonar Reasoning Pro is a multimodal llm from Perplexity AI. Supports up to 128,000 token context window. Achieves 83.0% on MMLU. Available from $2.00/M input tokens.
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