LLM Comparison
Grok 4.20 vs Sonar Pro
Side-by-side specs, pricing & capabilities · Updated May 2026
Price vs Intelligence
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 77 19.1 | 16 1.7 |
| Family | Grok | Sonar |
| Status | Current | Current |
| Release Date | Mar 2026 | Mar 2025 |
| Context Window | 2.0M tokens | 200K tokens |
| Input Price | $2.00/M tokens | $3.00/M tokens |
| Output Price | $6.00/M tokens | $15.00/M tokens |
| Pricing Notes | Cache read: $0.2000/M tokens | — |
| Capabilities | textvisioncode | textvisioncode |
| Max Output | — | 8K tokens |
| API Identifier | x-ai/grok-4.20 | perplexity/sonar-pro |
| Benchmarks | ||
| GPQA Diamond | — | 57.8perplexity |
| MMLU Pro | — | 75.5perplexity |
| MATH-500 | — | 74.5perplexity |
| AIME | — | 29perplexity |
| View Grok 4.20 | View Sonar Pro | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Grok 4.20Cheapest | $2.00 | $3.00 | $5.00 | — |
| Sonar Pro | $3.00 | $7.50 | $10.50 | +110% |
xAI
Grok 4.20
Grok 4.20 is a multimodal llm from xAI. Supports up to 2,000,000 token context window. Available from $2.00/M input tokens.
Perplexity AI
Sonar Pro
Sonar Pro is a multimodal llm from Perplexity AI. Supports up to 200,000 token context window. Achieves 83.0% on MMLU. Available from $3.00/M input tokens.
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