OpenAI has announced that GPT-4o, along with GPT-4.1, GPT-4.1 mini, and o4-mini, will be removed from ChatGPT on February 13, 2026. This follows the earlier retirement of GPT-5 models. GPT-4o gets special attention because it was briefly restored after initial deprecation when users complained. Many Plus and Pro subscribers loved its conversational warmth and creativity, which slowed their transition to newer models. OpenAI listened, and that feedback directly led to personality improvements in GPT-5.1 and GPT-5.2, with customizable tones like Friendly and controls for warmth and enthusiasm. Now only 0.1% of users still pick GPT-4o daily, making retirement safe. The company also promises ongoing updates to reduce unnecessary refusals and preachy responses, aiming for an adult-focused AI that treats users like adults. Why it matters: This move shows OpenAI is balancing nostalgia for beloved older models with the need to streamline resources toward ambitious upgrades—and proving that user feedback can genuinely shape AI personality, not just capability.