head-to-head
OpenAI: GPT-6 Luna Pro (batch) vs DeepSeek: DeepSeek Flash Latest
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.
| OpenAI: GPT-6 Luna Pro (batch) | DeepSeek: DeepSeek Flash Latest | |
|---|---|---|
| Vendor | openai | ~deepseek |
| Quality Score | 100 | 100 |
| Input Price | $0.05/M | $0.10/M |
| Output Price | $0.25/M | $0.49/M |
| Context Window | 1,050,000 | 1,048,576 |
| Max Output | 128,000 | 943,718 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
Who wins by task?
| Task | OpenAI: GPT-6 Luna Pro (batch) | DeepSeek: DeepSeek Flash Latest |
|---|---|---|
| SQL Generation | 134 | 133 |
| CSV / Spreadsheet Cleanup | 134 | 133 |
| Bulk Data Labeling | 129 | 129 |
| Long-Document Summarization | 138 | 137 |
| Blog Post Writing | 122 | 121 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
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