Is OpenAI: GPT-4o or OpenAI: GPT-5 Mini cheaper?
OpenAI: GPT-5 Mini is cheaper ($0.036 / 1M tokens input / $0.289 / 1M tokens output) vs OpenAI: GPT-4o ($0.362 / 1M tokens input / $1.45 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.