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OpenAI: GPT-6 Luna Pro 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 DeepSeek: DeepSeek Flash Latest
Vendoropenai~deepseek
Quality Score100100
Input Price$0.10/M$0.10/M
Output Price$0.50/M$0.49/M
Context Window1,050,0001,048,576
Max Output128,000943,718
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--

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