DeepSeek: DeepSeek V4 Flash Vision Exp vs OpenAI: GPT-5.6 Terra Pro (batch)
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-06.
| DeepSeek: DeepSeek V4 Flash Vision Exp | OpenAI: GPT-5.6 Terra Pro (batch) | |
|---|---|---|
| Vendor | deepseek | openai |
| Quality Score | 100 | 100 |
| Benchmark Score | 57.7 | - |
| Input Price | $0.22/M | $1.00/M |
| Output Price | $0.65/M | $6.00/M |
| Context Window | 1,048,576 | 1,050,000 |
| Max Output | 262,144 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 57.5 | - |
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 GPT-5.6 Terra Pro (batch) costs $2.50, so DeepSeek V4 Flash Vision Exp is about 6.6 times cheaper for the same work.
Both take in a similar amount of text: 1,048,576 and 1,050,000 tokens, about 1,573 and 1,575 pages.
Across the 20 tasks where they differ, DeepSeek V4 Flash Vision Exp scores higher on 20 (SQL Generation, Code Review, Code Completion and others).
DeepSeek V4 Flash Vision Exp was released in August 2026 and GPT-5.6 Terra Pro (batch) in July 2026.
Pick DeepSeek V4 Flash Vision Exp 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 | DeepSeek: DeepSeek V4 Flash Vision Exp | OpenAI: GPT-5.6 Terra Pro (batch) |
|---|---|---|
| SQL Generation | 140 | 133 |
| Code Review | 142 | 132 |
| Code Completion | 133 | 118 |
| Code Refactoring | 145 | 136 |
| Bug Fixing | 146 | 136 |
| Unit Test Generation | 130 | 124 |
| Code Documentation | 137 | 130 |
| Regex Writing | 125 | 118 |
| CI/CD Pipelines | 126 | 120 |
| Frontend Component Design | 128 | 122 |
| Data Analysis | 132 | 124 |
| CSV / Spreadsheet Cleanup | 136 | 133 |
| ETL Scripting | 136 | 128 |
| JSON Extraction | 131 | 122 |
| Bulk Data Labeling | 129 | 119 |
| OCR / Document Parsing | 133 | 131 |
| Table Extraction from PDFs | 133 | 131 |
| Long-Document Summarization | 147 | 137 |
| Short-Form Summarization | 126 | 114 |
| Blog Post Writing | 128 | 121 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →