Grok 4.20 0309 vs Sonar Deep Research
xAI vs Perplexity — benchmarks, pricing, and capabilities side by side.
| Grok 4.20 0309 | Sonar Deep Research | |
|---|---|---|
| Intelligence index | 88.5 | — |
| Developer | xAI | Perplexity |
| Type | LLM | LLM |
| Access | — | API only |
| Context window | — | 128,000 tokens |
| Input price | $2.00 / 1M | $2.00 / 1M |
| Output price | $6.00 / 1M | $8.00 / 1M |
| Speed | 97 tok/s | — |
| Released | March 10, 2026 | March 7, 2025 |
| Parameters | — | — |
| Input modalities | — | Text |
| Output modalities | — | Text |