LLM Comparison
Grok 4.20 Multi-Agent vs Sonar Reasoning Pro
Side-by-side specs, pricing & capabilities · Updated May 2026
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 44 8.8 | |
| Family | Grok | Sonar |
| Status | Current | Current |
| Release Date | Mar 2026 | Mar 2025 |
| Context Window | 2.0M tokens | 128K tokens |
| Input Price | $2.00/M tokens | $2.00/M tokens |
| Output Price | $6.00/M tokens | $8.00/M tokens |
| Pricing Notes | Cache read: $0.2000/M tokens | — |
| Capabilities | textvisioncode | textvisioncodeextended-thinking |
| API Identifier | x-ai/grok-4.20-multi-agent | perplexity/sonar-reasoning-pro |
| Benchmarks | ||
| GPQA Diamond | — | 62.3perplexity |
| MATH-500 | — | 92.1perplexity |
| AIME | — | 77perplexity |
| MMLU Pro | — | 79perplexity |
| View Grok 4.20 Multi-Agent | View Sonar Reasoning Pro | |
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Grok 4.20 Multi-AgentCheapest | $2.00 | $3.00 | $5.00 | — |
| Sonar Reasoning Pro | $2.00 | $4.00 | $6.00 | +20% |
xAI
Grok 4.20 Multi-Agent
Grok 4.20 Multi-Agent 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 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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