head-to-head
xAI: Grok Build 0.1 vs Google: Gemini 3.1 Pro Preview Custom Tools
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-12.
| xAI: Grok Build 0.1 | Google: Gemini 3.1 Pro Preview Custom Tools | |
|---|---|---|
| Vendor | x-ai | |
| Quality Score | 100 | 100 |
| Input Price | $1.00/M | $2.00/M |
| Output Price | $2.00/M | $12.00/M |
| Context Window | 256,000 | 1,048,756 |
| Max Output | - | 65,536 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | ✓ |
Who wins by task?
| Task | xAI: Grok Build 0.1 | Google: Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|
| SQL Generation | 130 | 132 |
| Code Review | 126 | 132 |
| Code Completion | 116 | 117 |
| Code Refactoring | 127 | 136 |
| Bug Fixing | 130 | 136 |
| Unit Test Generation | 121 | 124 |
| Code Documentation | 125 | 129 |
| Regex Writing | 119 | 117 |
| CI/CD Pipelines | 117 | 120 |
| CSV / Spreadsheet Cleanup | 127 | 132 |
| ETL Scripting | 122 | 128 |
| JSON Extraction | 123 | 121 |
| Bulk Data Labeling | 121 | 117 |
| OCR / Document Parsing | 128 | 131 |
| Table Extraction from PDFs | 128 | 131 |
| Long-Document Summarization | 129 | 136 |
| Short-Form Summarization | 115 | 113 |
| Blog Post Writing | 118 | 120 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
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