DeepSeek: DeepSeek V4.1 Flash vs SpaceXAI: Grok 4.6
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| DeepSeek: DeepSeek V4.1 Flash | SpaceXAI: Grok 4.6 | |
|---|---|---|
| Vendor | deepseek | x-ai |
| Quality Score | 100 | 100 |
| Input Price | $0.05/M | $2.00/M |
| Output Price | $0.57/M | $6.00/M |
| Context Window | 1,048,576 | 500,000 |
| Max Output | 943,718 | 450,000 |
| 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 V4.1 Flash costs $0.19 and Grok 4.6 costs $3.50, so DeepSeek V4.1 Flash is about 18.2 times cheaper for the same work.
DeepSeek V4.1 Flash reads up to 1,048,576 tokens at once, roughly 1,573 pages of text, against about 750 pages for Grok 4.6.
Across the 10 tasks where they differ, DeepSeek V4.1 Flash scores higher on 10 (SQL Generation, Code Completion, Code Documentation and others).
DeepSeek V4.1 Flash was released in September 2026 and Grok 4.6 in August 2026.
Pick DeepSeek V4.1 Flash if you need lower cost, long documents or the stronger all-round task scores.
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 | DeepSeek: DeepSeek V4.1 Flash | SpaceXAI: Grok 4.6 |
|---|---|---|
| SQL Generation | 133 | 133 |
| Code Completion | 131 | 118 |
| Code Documentation | 131 | 130 |
| Regex Writing | 119 | 118 |
| CSV / Spreadsheet Cleanup | 133 | 133 |
| JSON Extraction | 131 | 122 |
| Bulk Data Labeling | 129 | 119 |
| Long-Document Summarization | 137 | 137 |
| Short-Form Summarization | 123 | 114 |
| Blog Post Writing | 121 | 121 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →