Is OpenAI: GPT-3.5 Turbo or OpenAI: GPT-4 Turbo Preview cheaper?
OpenAI: GPT-3.5 Turbo is cheaper ($0.094 / 1M tokens input / $0.282 / 1M tokens output) vs OpenAI: GPT-4 Turbo Preview ($1.88 / 1M tokens input / $5.64 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.