OpenAI’s ChatGPT service was down all day for many users after the platform started experiencing performance issues on Tuesday morning. Downdetector showed that issues started at around 3AM ET, with multiple regions impacted globally. Some users were able to access ChatGPT, but found that the service was sluggish and taking much longer than usual to respond. Perplexity, the AI search engine service that utilizes some OpenAI models, also reported experiencing outages and reporting “slowness and elevated error rates” on its status page. Perplexity’s issues started at around 7AM ET, according to Downdetector.