Thursday, October 15, 2026 · 1 of 5

1. OpenAI's Oct 23 API shutdown is wider than the o-series: it also takes gpt-4, gpt-4-turbo, gpt-3.5-turbo, gpt-image-1 and several fine-tune families; Agent Builder and the v1/prompts API follow on Nov 30

   Oct 15 check of OpenAI's pagePricing