SpaceXAI: Grok 4.6 vs DeepSeek: DeepSeek V4 Flash Latest
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| SpaceXAI: Grok 4.6 | DeepSeek: DeepSeek V4 Flash Latest | |
|---|---|---|
| Vendor | x-ai | ~deepseek |
| Quality Score | 100 | 99 |
| Input Price | $2.00/M | $0.04/M |
| Output Price | $6.00/M | $0.30/M |
| Context Window | 500,000 | 1,048,576 |
| Max Output | 450,000 | 943,718 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | - |
| Audio | - | - |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, DeepSeek V4 Flash Latest costs $0.12 and Grok 4.6 costs $3.50, so DeepSeek V4 Flash Latest is about 29.6 times cheaper for the same work.
DeepSeek V4 Flash Latest reads up to 1,048,576 tokens at once, roughly 1,573 pages of text, against about 750 pages for Grok 4.6.
Only Grok 4.6 offers image input.
Across the 20 tasks where they differ, Grok 4.6 scores higher on 10 (Code Review, Code Refactoring, Bug Fixing and others), DeepSeek V4 Flash Latest on 10 (SQL Generation, Code Completion, Code Documentation and others).
Pick Grok 4.6 if you need image input; pick DeepSeek V4 Flash Latest if you need lower cost or long documents.
Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.
Who wins by task?
| Task | SpaceXAI: Grok 4.6 | DeepSeek: DeepSeek V4 Flash Latest |
|---|---|---|
| SQL Generation | 133 | 133 |
| Code Review | 132 | 131 |
| Code Completion | 118 | 131 |
| Code Refactoring | 136 | 135 |
| Bug Fixing | 136 | 135 |
| Unit Test Generation | 124 | 123 |
| Code Documentation | 130 | 131 |
| Regex Writing | 118 | 119 |
| CI/CD Pipelines | 120 | 119 |
| Frontend Component Design | 122 | 91 |
| Data Analysis | 124 | 123 |
| CSV / Spreadsheet Cleanup | 133 | 133 |
| ETL Scripting | 128 | 127 |
| JSON Extraction | 122 | 131 |
| Bulk Data Labeling | 119 | 129 |
| OCR / Document Parsing | 131 | 85 |
| Table Extraction from PDFs | 131 | 85 |
| Long-Document Summarization | 137 | 137 |
| Short-Form Summarization | 114 | 123 |
| Blog Post Writing | 121 | 121 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →