OpenAI Retires GPT-4o, GPT-4.1, and Other Models Due to Low Usage

• OpenAI announced the retirement of GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini from ChatGPT.
• GPT-4o, launched in May 2024, gained popularity among some paid users for its conversational style.
• The decision is driven by low usage, with only 0.1% of users choosing GPT-4o daily, while most use GPT-5.2.
• OpenAI aims to focus resources on newer models and streamline its lineup for faster improvements.
• GPT-5 Instant and GPT-5 Thinking are also being phased out to simplify ChatGPT's model selection; API offerings remain unchanged.

Why It Matters: OpenAI is retiring several GPT models, including GPT-4o, due to low usage and to focus on newer, more popular models.