OpenAI has implemented rate limits for its image generation feature after it caused server overload.CEO Sam Altman announced the change due to strain on the company's servers from the viral trend of creating Studio Ghibli-style images.Free tier users will be restricted to three image generations per day.The trend raised copyright concerns and Studio Ghibli co-founder Hayao Miyazaki described AI-generated art as 'an insult to life itself.'