OpenAI: GPT-6 Sol Pro (batch) vs DeepSeek: DeepSeek V4.1 Flash (batch)
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| OpenAI: GPT-6 Sol Pro (batch) | DeepSeek: DeepSeek V4.1 Flash (batch) | |
|---|---|---|
| Vendor | openai | deepseek |
| Quality Score | 100 | 100 |
| Input Price | $1.00/M | $0.01/M |
| Output Price | $5.00/M | $0.20/M |
| Context Window | 1,050,000 | 1,048,576 |
| Max Output | 128,000 | 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 V4.1 Flash (batch) costs $0.061 and GPT-6 Sol Pro (batch) costs $2.25, so DeepSeek V4.1 Flash (batch) is about 36.9 times cheaper for the same work.
Both take in a similar amount of text: 1,050,000 and 1,048,576 tokens, about 1,575 and 1,573 pages.
Across the 10 tasks where they differ, DeepSeek V4.1 Flash (batch) on 10 (SQL Generation, Code Completion, Code Documentation and others).
Pick DeepSeek V4.1 Flash (batch) if you need lower cost 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 | OpenAI: GPT-6 Sol Pro (batch) | DeepSeek: DeepSeek V4.1 Flash (batch) |
|---|---|---|
| SQL Generation | 133 | 134 |
| Code Completion | 118 | 132 |
| Code Documentation | 130 | 132 |
| Regex Writing | 118 | 120 |
| CSV / Spreadsheet Cleanup | 133 | 134 |
| JSON Extraction | 122 | 132 |
| Bulk Data Labeling | 120 | 129 |
| Long-Document Summarization | 137 | 138 |
| Short-Form Summarization | 114 | 124 |
| Blog Post Writing | 121 | 122 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →