Is DeepSeek-V4-Flash or Gemini 3.5 Flash cheaper?
DeepSeek-V4-Flash is cheaper ($0.14 / 1M tokens input / $0.28 / 1M tokens output) vs Gemini 3.5 Flash ($1.50 / 1M tokens input / $9 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.