Gemini 3 Flash Preview Input $0.30 / 1M tokens | Output $1.80 / 1M tokens Gemini 3.5 Flash Input $0.90 / 1M tokens | Output $5.40 / 1M tokens Gemini 3.5 Flash Lite Input $0.15 / 1M tokens | Output $1.25 / 1M tokens Gemini 3.6 Flash Input $0.75 / 1M tokens | Output $3.75 / 1M tokens Gemini 3.7 Flash Input $0.45 / 1M tokens | Output $2.25 / 1M tokens Gemini 3.8 Flash Input $0.45 / 1M tokens | Output $2.25 / 1M tokens