DeepSeek: DeepSeek V4 Flash Vision Exp vs Qwen: Qwen3.8 27B
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-06.
| DeepSeek: DeepSeek V4 Flash Vision Exp | Qwen: Qwen3.8 27B | |
|---|---|---|
| Vendor | deepseek | qwen |
| Quality Score | 100 | 100 |
| Benchmark Score | 57.7 | 55.6 |
| Input Price | $0.22/M | $0.42/M |
| Output Price | $0.65/M | $2.55/M |
| Context Window | 1,048,576 | 1,000,000 |
| Max Output | 262,144 | 131,072 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 57.5 | 55.6 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, DeepSeek V4 Flash Vision Exp costs $0.38 and Qwen3.8 27B costs $1.06, so DeepSeek V4 Flash Vision Exp is about 2.8 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 27B offers video input.
On our blended benchmark score DeepSeek V4 Flash Vision Exp leads 57.7 to 55.6.
Across the 20 tasks where they differ, DeepSeek V4 Flash Vision Exp scores higher on 20 (SQL Generation, Code Review, Code Completion and others).
Pick DeepSeek V4 Flash Vision Exp if you need lower cost, benchmark performance or the stronger all-round task scores; pick Qwen3.8 27B if you need video input.
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 Flash Vision Exp | Qwen: Qwen3.8 27B |
|---|---|---|
| SQL Generation | 140 | 140 |
| Code Review | 142 | 142 |
| Code Completion | 133 | 132 |
| Code Refactoring | 145 | 144 |
| Bug Fixing | 146 | 146 |
| Unit Test Generation | 130 | 130 |
| Code Documentation | 137 | 136 |
| Regex Writing | 125 | 125 |
| CI/CD Pipelines | 126 | 126 |
| Frontend Component Design | 128 | 128 |
| Data Analysis | 132 | 132 |
| CSV / Spreadsheet Cleanup | 136 | 135 |
| ETL Scripting | 136 | 135 |
| JSON Extraction | 131 | 131 |
| Bulk Data Labeling | 129 | 129 |
| OCR / Document Parsing | 133 | 133 |
| Table Extraction from PDFs | 133 | 133 |
| Long-Document Summarization | 147 | 146 |
| Short-Form Summarization | 126 | 126 |
| Blog Post Writing | 128 | 128 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →