DeepSeek: DeepSeek V4.1 Flash (batch) vs Qwen: Qwen3.8 Max (0902)
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-13.
| DeepSeek: DeepSeek V4.1 Flash (batch) | Qwen: Qwen3.8 Max (0902) | |
|---|---|---|
| Vendor | deepseek | qwen |
| Quality Score | 100 | 100 |
| Benchmark Score | 66.3 | 77.3 |
| Input Price | $0.11/M | $2.00/M |
| Output Price | $0.34/M | $6.00/M |
| Context Window | 1,048,576 | 1,000,000 |
| Max Output | 131,072 | 131,072 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 65.1 | 74.9 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, DeepSeek V4.1 Flash (batch) costs $0.20 and Qwen3.8 Max (0902) costs $3.50, so DeepSeek V4.1 Flash (batch) is about 17.9 times cheaper for the same work.
Both take in a similar amount of text: 1,048,576 and 1,000,000 tokens, about 1,573 and 1,500 pages.
Only Qwen3.8 Max (0902) offers video input.
On our blended benchmark score Qwen3.8 Max (0902) leads 77.3 to 66.3.
Across the 20 tasks where they differ, DeepSeek V4.1 Flash (batch) scores higher on 7 (Code Completion, Code Documentation, Regex Writing and others), Qwen3.8 Max (0902) on 13 (SQL Generation, Code Review, Code Refactoring and others).
Pick DeepSeek V4.1 Flash (batch) if you need lower cost; pick Qwen3.8 Max (0902) if you need video input or benchmark performance.
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 (batch) | Qwen: Qwen3.8 Max (0902) |
|---|---|---|
| SQL Generation | 141 | 142 |
| Code Review | 144 | 146 |
| Code Completion | 133 | 119 |
| Code Refactoring | 146 | 148 |
| Bug Fixing | 148 | 150 |
| Unit Test Generation | 131 | 133 |
| Code Documentation | 137 | 137 |
| Regex Writing | 126 | 125 |
| CI/CD Pipelines | 127 | 129 |
| Frontend Component Design | 129 | 131 |
| Data Analysis | 133 | 135 |
| CSV / Spreadsheet Cleanup | 136 | 136 |
| ETL Scripting | 137 | 138 |
| JSON Extraction | 131 | 122 |
| Bulk Data Labeling | 129 | 119 |
| OCR / Document Parsing | 134 | 134 |
| Table Extraction from PDFs | 134 | 134 |
| Long-Document Summarization | 148 | 149 |
| Short-Form Summarization | 127 | 118 |
| Blog Post Writing | 129 | 130 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →