OpenAI cuts GPT-5.6 Sol's API and credit prices by over 20% for the next three months, to $4/1M input tokens and $20/1M output tokens (Anzar Mehraj/Reuters)

OpenAI announced a price reduction of more than 20% for its GPT-5.6 Sol API, setting rates at $4 per million input tokens and $20 per million output tokens for the next three months. The cut applies to all developer usage of the frontier model, aiming to lower costs and accelerate adoption.