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OpenAI’s launch of its most advanced AI model GPT-5 last week has been a stress test for the world’s most popular chatbot platform with 700 million weekly active users — and so far, OpenAI is openly struggling to keep users happy and its service running smoothly.
The new flagship model GPT-5 — available in four variants of different speed and intelligence (regular, mini, nano, and pro), alongside longer-response and more powerful “thinking” modes for at least three of these variants — was said to offer faster responses, more reasoning power, and stronger coding ability.
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Instead, it was greeted with frustration: some users were vocally dismayed by OpenAI’s decision to abruptly remove the older underlying AI models from ChatGPT — the ones users’ previously relied on, and in some cases, forged deep emotional fixations with — and by the apparent worse performance by GPT-5 than said older models on tasks in math, science, writing and other domains.
