head-to-head
Anthropic Claude Sonnet Latest vs xAI: Grok 4.20
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-05-12.
| Anthropic Claude Sonnet Latest | xAI: Grok 4.20 | |
|---|---|---|
| Vendor | ~anthropic | x-ai |
| Quality Score | 100 | 100 |
| Input Price | $3.00/M | $1.25/M |
| Output Price | $15.00/M | $2.50/M |
| Context Window | 1,000,000 | 2,000,000 |
| Max Output | 128,000 | - |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
Who wins by task?
| Task | Anthropic Claude Sonnet Latest | xAI: Grok 4.20 |
|---|---|---|
| SQL Generation | 132 | 133 |
| Code Completion | 116 | 119 |
| Code Documentation | 128 | 131 |
| Regex Writing | 116 | 119 |
| CSV / Spreadsheet Cleanup | 132 | 133 |
| JSON Extraction | 120 | 123 |
| Bulk Data Labeling | 116 | 120 |
| Long-Document Summarization | 136 | 137 |
| Short-Form Summarization | 112 | 115 |
| Blog Post Writing | 120 | 121 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
Related comparisons
Google: Gemini 3.1 Flash Lite vs Anthropic Claude Sonnet Latest
Google: Gemini 3.1 Flash Lite vs xAI: Grok 4.20
xAI: Grok 4.3 vs Anthropic Claude Sonnet Latest
xAI: Grok 4.3 vs xAI: Grok 4.20
Mistral: Mistral Medium 3.5 vs Anthropic Claude Sonnet Latest
Mistral: Mistral Medium 3.5 vs xAI: Grok 4.20
NVIDIA: Nemotron 3 Nano Omni (free) vs Anthropic Claude Sonnet Latest
NVIDIA: Nemotron 3 Nano Omni (free) vs xAI: Grok 4.20