Compare DeepSeek: DeepSeek V4 Flash 0731 (DeepSeek) and OpenAI: GPT-5.6 Luna (OpenAI) by price, context, capabilities, and latency.
Side by side
Compare price, provider, context, capabilities, latency, and source basis.
| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| DeepSeek: DeepSeek V4 Flash 0731deepseek/deepseek-v4-flash-0731 | DeepSeek | $0.45 / 1M tokens | $1.33 / 1M tokens | 1.3M | StreamingTool callingJSON modeLong context | Chinese Q&A, general chat | 0-0ms | Catalog | Platform curated |
| OpenAI: GPT-5.6 Lunaopenai/gpt-5.6-luna | OpenAI | Starting at $0.2 / 1M tokens | $1.20 / 1M tokens | 1.1M | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 2007-3004ms | Catalog | Platform curated |
FAQ
OpenAI: GPT-5.6 Luna is cheaper ($0.2 / 1M tokens input / $1.20 / 1M tokens output) vs DeepSeek: DeepSeek V4 Flash 0731 ($0.45 / 1M tokens input / $1.33 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.
DeepSeek: DeepSeek V4 Flash 0731 is larger (1.3M tokens) vs 1.1M tokens.
Both target Long context. Pick OpenAI: GPT-5.6 Luna to optimize cost, or DeepSeek: DeepSeek V4 Flash 0731 for the longer context window. Test both on real prompts before committing production traffic.
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