OpenAI cut pricing on GPT-5.6 Sol, its flagship model, by more than 20 percent for the next three months — new developer rates of $4 per million input tokens and $20 per million output, down from $5 and $30. [1][2] It is the second pricing move on the family in a month, after Luna fell 80 percent and Terra 20 percent in July. [2] Cognition immediately made Sol the cheapest frontier model available on Devin. [2]

The churn is the other half of the story. Kaylin Voss, vice president of Americas sales, resigned after five months, about a week after chief revenue officer Denise Dresser left. [2] Two commercial executives gone in two weeks at the company cutting list prices to hold share.

Read together, the moves sketch a leader using efficiency gains as ammunition — Sol reportedly helped optimize its own inference stack [2] — while the bench that sells it turns over. Observers read the cut as competitive signaling against Anthropic, whose early compute investments are compounding. [2] Rivals smell the window: enterprise momentum and listing chatter frame every OpenAI discount as an answer to someone else's question. [3]

Price wars are cheap to start and expensive to stop. The question Friday is which company is buying market share and which is selling it.

-- THEO KAPLAN, San Francisco