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Nostalgia Hits as GPT-4 Leaves ChatGPT
29 May
Summary
- OpenAI is retiring its last GPT-4 models from ChatGPT.
- GPT-4.5 and o3 models will disappear by June 27, 2026.
- Users express sadness over the retirement of capable AI models.
OpenAI has confirmed the retirement of the final GPT-4 models from ChatGPT, including GPT-4.5 and o3. These models, which played a significant role in the generative AI revolution, will be phased out following sunset periods. GPT-4.5 will disappear on June 27, 2026, and o3 on August 26, 2026. Both are currently available only to paid users.
The move signifies the end of an era for AI development, as GPT-4 was instrumental in making AI accessible and intelligent to millions. Users on social media have voiced their dismay, with some claiming that the retired models, particularly 4.5, were superior in writing and reasoning to newer iterations.
Despite the advancement of newer models like GPT-5.5, the retirement of GPT-4 models has sparked a sense of nostalgia. This sentiment highlights how users connect with AI not just based on capability, but also on perceived personality, a unique aspect of modern computing.
