LLM Comparison
Sonar Reasoning Pro vs Mistral Small 4
Side-by-side specs, pricing & capabilities · Updated April 2026
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2/6 modelsSame tier:
S Sonar Reasoning Pro | M Mistral Small 4 | |
|---|---|---|
| Organization | Perplexity AI | Mistral AI |
| OpenTools Score | ||
| Family | Sonar | Mistral |
| Status | Current | Current |
| Release Date | Mar 2025 | Mar 2026 |
| Context Window | 128K tokens | 262K tokens |
| Input Price | $2.00/M tokens | $0.15/M tokens |
| Output Price | $8.00/M tokens | $0.60/M tokens |
| Pricing Notes | — | Cache read: $0.0150/M tokens |
| Capabilities | textvisioncodeextended-thinking | textvisioncodetool-use |
| API Identifier | perplexity/sonar-reasoning-pro | mistralai/mistral-small-2603 |
| Benchmarks | ||
| MMLU | 83 | 76.5 |
| View Sonar Reasoning Pro | View Mistral Small 4 | |
Cost Calculator
Enter your expected monthly token usage to compare costs.
| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Mistral Small 4Cheapest | $0.15 | $0.30 | $0.45 | — |
| Sonar Reasoning Pro | $2.00 | $4.00 | $6.00 | +1233% |
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.
Mistral AI
Mistral Small 4
Mistral Small 4 is a multimodal llm from Mistral AI. Supports up to 262,144 token context window. Achieves 76.5% on MMLU. Available from $0.15/M input tokens.
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