OpenAI Slashes GPT-5.6 Sol API Prices Amid Heightened Model Competition

OpenAI has reduced GPT-5.6 Sol API pricing by 35%, passing infrastructure efficiency gains onto commercial API developers.

OpenAI today announced immediate price reductions for its GPT-5.6 Sol API endpoints, cutting input costs to $1.25 per million tokens and output costs to $3.75.

The price adjustments stem from recent hardware optimization breakthroughs across OpenAI's new custom Jalapeño inference infrastructure.

The aggressive price cuts apply pressure to competing model hosts as enterprise adoption of high-reasoning LLMs continues to accelerate.