Microsoft cuts GPT-5.6 Sol to $4/$20

Microsoft made OpenAI’s GPT-5.6 Sol generally available in Foundry and will price it at $4 per million input tokens and $20 per million output tokens from September 1 through at least November 30, a temporary discount of 20% on input and 33.3% on output, per Microsoft’s announcement. The same release makes an Asia-Pacific data zone and hosted agents generally available. Builders comparing frontier endpoints should treat November 30 as a reprice date, then benchmark against Google’s recent workhorse-model price cut before locking in routing logic.