ChatGPT-4o is gone. We ran 9 final tests against GPT-5.2 to see what changed — and what users may miss.

"Those experiences weren’t just 'chatbots.' They were relationships." The post As OpenAI Pulls Down the Controversial GPT-4o, ...

OpenAI started rolling out the GPT-5 models to ChatGPT users soon after its live event ended on Thursday. The update took a couple of days to deploy, and GPT-5 models became widely available around ...

OpenAI is killing its ultra-popular GPT-4o and several of its older models -- for real this time. The AI company announced at the beginning of February that it planned to retire GPT-5, GPT-4o, GPT-4.1 ...

In addition to releasing new models with improved AI, OpenAI also routinely upgrades the base AI model that most people chat with regularly. That's GPT-4o, the model OpenAI launched last May with ...

The deprecation of OpenAI's GPT-4o sparks backlash and a petition. Users said they cherish its unique conversational style.

The petition to reinstate the model initially began circulating last year when GPT-4o faced its first demise. OpenAI first retired GPT-4o in favor of GPT-5 in 2025, but user backlash was so ...

The Internet is fuming as OpenAI retired GPT-4o recently, a chatbot model beloved for its warm, conversational style and unique emotional resonance. Despite a Change.org petition amassing over 22,000 ...

OpenAI CEO Sam Altman today said that the company will allow Plus users to continue to use the prior-generation GPT-4o model if they don't want to use the new GPT-5 model that came out yesterday.

While ChatGPT has existed in various forms for some time, its true mainstream success began with the release of GPT-3 in 2020. Since then, ChatGPT has evolved significantly, both for better and worse.

Michelle is Lifehacker's Associate Tech Editor, and has been reviewing games, laptops, phones, and more for over 10 years. She is based in New York City and holds a master's degree from NYU. OpenAI ...

Is newer always better? When GPT-5 was announced, many expected it to be a new leap forward, a model that would leave its predecessor, GPT-4o, in the dust. Yet, early adopters have been met with a ...