GPT-5.4 vs GPT-5.4 Mini, task by task: where the 3.3x price gap is worth paying and where it isn't
OpenAI released GPT-5.4 Mini at $0.75 per million input tokens and $4.50 per million output tokens, while GPT-5.4 costs $2.50 and $15, a 3.3x price multiplier. A developer's task-by-task analysis shows that 50-70% of pro…