Model Comparison
Qwen3 4B (Reasoning)
vs. Sonar Reasoning Pro
Comparing 2 AI models · 11 benchmarks · Alibaba, Perplexity
Recommended Pick
PeSonar Reasoning Pro4 metric winsStrongest on: Reasoning, Intelligence, MATH 500
Lowest Price
Qwen3 4B (Reasoning)
$0.00/1M input price
Best Reasoning
Sonar Reasoning Pro
64.2 reasoning score
Blends available reasoning benchmarks
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Reasoning gap
Sonar Reasoning Pro leads Qwen3 4B (Reasoning) by 25.7 points on reasoning.
Top-pick rationale
Sonar Reasoning Pro wins 4 measurable categories, including Reasoning, Intelligence, MATH 500, AIME (Original).
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Qwen3 4B (Reasoning)
Alibaba
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?
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Full Comparison
| Metric | Al Qwen3 4B (Reasoning) | Top Pick Pe Sonar Reasoning Pro |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $0.00/1M |
| Output Cost | $0.00/1M | $0.00/1M |
| Specifications | ||
| Organization | Alibaba | Perplexity |
| Release Date | Apr 28, 2025 | Jan 28, 2025 |
| Performance & Speed | ||
| Throughput | — | — |
| TTFT | — | — |
| Latency | — | — |
| Composite Indices | ||
| Reasoning Score | 38.5 | 64.2 |
| Intelligence | 8.4 | 17.8 |
| Math | 22.3 | — |
| Standard Benchmarks | ||
| GPQA | 52.2% | — |
| MMLU Pro | 69.6% | — |
| HLE | 5.1% | — |
| LiveCodeBench | 46.5% | — |
| MATH 500 | 93.3% | 95.7% |
| AIME 2025 | 22.3% | — |
| AIME (Original) | 65.7% | 79.0% |
| SciCode | 3.5% | — |
| LCR | 0.0% | — |
| IFBench | 32.5% | — |
| TAU-bench v2 | 19.0% | — |
Key Takeaways
Qwen3 4B (Reasoning) offers the best value at $0.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Sonar Reasoning Pro has the strongest reasoning profile with a 64.2 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
Qwen3 4B (Reasoning)
- Cost-sensitive applications
- High-volume processing
Sonar Reasoning Pro
- Complex reasoning tasks
- Research & analysis
