DeepSeek V4 Pro vs Flash: Which Should You Actually Use?
DeepSeek V4 Pro vs V4 Flash — current peak and off-peak pricing, speed, reasoning depth and coding, plus a practical model-routing strategy.
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How to Use the DeepSeek API for Free (or Nearly Free) in 2026
How to use the DeepSeek API cheaply in 2026 — consumer chat, self-hosting, trial credit, current V4 pricing, caching, and data-residency considerations.