Users can now talk out loud to the AI chatbot and it will answer back with its own synthesised voice. The feature is part of an upgrade to the mobile app and follows in the footsteps of voice assistants such as Amazon's Alexa and Apple's Siri. ChatGPT has been given five different voices – both male and female - that were trained on actors hired by OpenAI, the US company behind the technology. The firm claims they are far more realistic than rival voice assistants – and is looking at allowing users to create their own in the future. Spotify has announced it is trialling the technology to translate podcasts into other languages, with an AI-generated imitation of the original host's voice.