GPT-4o mini arrives and replaces GPT-3.5 Turbo

OpenAI released GPT-4o mini, a small, inexpensive model priced at 15 cents per million input tokens and 60 cents per million output tokens — more than 60% below GPT-3.5 Turbo. It has a 128K context window, handles text and images, and supports the same languages as GPT-4o. In ChatGPT it replaced GPT-3.5 for Free, Plus and Team users the same day. The pricing was also a marker of how far the cost of frontier-class models had fallen in two years.