GPT-5.6 Sol promo pricing ends November 30th, a customer email says
A customer email says the promotion ends November 30th; OpenAI's public docs guarantee the $4/$20 promo rate at least through November 21st.
By Ryan Merket · Published
Primary source: OpenAI API
Why it matters
If the email's November 30th date holds, GPT-5.6 Sol output costs rise 50% and input costs 25% overnight. Developers have until at least November 21st at the documented promo rate to test GPT-6.1 Sol.
A customer email from OpenAI says GPT-5.6 Sol's promotional API pricing will end on November 30th, 2026, with Standard rates returning to $5 per million input tokens, $0.50 per million cached input tokens, and $30 per million output tokens. The email is the sole source for the November 30th cutoff and the return to those rates on that date.…
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