LLM Comparison
Sonar Reasoning Pro vs Claude Sonnet 4.6
Side-by-side specs, pricing & capabilities · Updated May 2026
Price vs Intelligence
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 44 8.8 | 52 5.7 |
| Family | Sonar | Claude |
| Status | Current | Current |
| Release Date | Mar 2025 | Feb 2026 |
| Context Window | 128K tokens | 1.0M tokens |
| Input Price | $2.00/M tokens | $3.00/M tokens |
| Output Price | $8.00/M tokens | $15.00/M tokens |
| Pricing Notes | — | Cache read: $0.3000/M tokens |
| Capabilities | textvisioncodeextended-thinking | textvisioncodetool-use |
| Max Output | — | 128K tokens |
| API Identifier | perplexity/sonar-reasoning-pro | anthropic/claude-sonnet-4.6 |
| Benchmarks | ||
| GPQA Diamond | 62.3perplexity | 89.9anthropic |
| MATH-500 | 92.1perplexity | — |
| AIME | 77perplexity | — |
| MMLU Pro | 79perplexity | — |
| MMLU | — | 86.7anthropic |
| SWE-bench Verified | — | 72.5anthropic |
| Terminal-Bench 2.0 | — | 51anthropic |
| MATH 500 | — | 54.2anthropic |
| LiveCodeBench | — | 41.5anthropic |
| Berkeley Function Calling | — | 88.3anthropic |
| HLE | — | 30openrouter |
| GPQA-AA Elo | — | 1674artificial-analysis |
| View Sonar Reasoning Pro | View Claude Sonnet 4.6 | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Sonar Reasoning ProCheapest | $2.00 | $4.00 | $6.00 | — |
| Claude Sonnet 4.6 | $3.00 | $7.50 | $10.50 | +75% |
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.
Anthropic
Claude Sonnet 4.6
Claude Sonnet 4.6 is a multimodal llm from Anthropic. Supports up to 1,000,000 token context window. Achieves 88.0% on MMLU. Available from $3.00/M input tokens.
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