DeepSeek: DeepSeek Flash Latest vs OpenAI: GPT Luna Latest
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-13.
| DeepSeek: DeepSeek Flash Latest | OpenAI: GPT Luna Latest | |
|---|---|---|
| Vendor | ~deepseek | ~openai |
| Quality Score | 100 | 100 |
| Input Price | $0.04/M | $0.10/M |
| Output Price | $0.89/M | $0.50/M |
| Context Window | 1,048,576 | 1,050,000 |
| Max Output | 943,718 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, GPT Luna Latest costs $0.23 and DeepSeek Flash Latest costs $0.27, so GPT Luna Latest is slightly 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 6 tasks where they differ, GPT Luna Latest on 6 (Code Completion, Code Documentation, Regex Writing and others).
Pick GPT Luna Latest 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 Flash Latest | OpenAI: GPT Luna Latest |
|---|---|---|
| Code Completion | 131 | 131 |
| Code Documentation | 131 | 131 |
| Regex Writing | 119 | 119 |
| JSON Extraction | 131 | 131 |
| Bulk Data Labeling | 129 | 129 |
| Short-Form Summarization | 123 | 123 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →