War of words: my language lessons in Ukraine

Across the world, hundreds of people have come to believe they have made extraordinary scientific discoveries with AI chatbots such as ChatGPT, Claude and Gemini. Others say their AI has ‘awakened’, or is leading them to a higher spiritual realm. The Guardian journalist Michael Safi investigates a phenomenon labelled ‘AI psychosis’, travelling to the US to meet two people who have been on weird journeys with their chatbots. Help support our independent journalism at theguardian.com/infocus

Reform UK has suspended two senior officials after they were filmed in an undercover operation appearing to attempt to get around electoral laws on foreign donations. The sting, by Channel 4 News and the investigative group Verbatim, was published on the eve of Nigel Farage’s party conference speech in Birmingham. Reform says it has launched an investigation into the actions of James Orr, the party’s head of policy, and Dan Jukes, a senior aide to Farage. Lucy Hough speaks to senior political correspondent Peter Walker – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

After last week’s devastating floods, the Guardian’s south Asia correspondent, Hannah Ellis-Petersen, tells Annie Kelly about her journey to some of Nepal’s worst-hit areas, and what she found there. Help support our independent journalism at theguardian.com/infocus

The UN has warned that the El Niño climate phenomenon is ‘supersizing before our eyes’. The event is forecast to be the largest in at least 1,000 years and will almost certainly shatter temperature records. After a summer of record-breaking heatwaves and extreme weather due to global heating, El Niño means 2027 is almost certain to be the hottest year ever recorded. Lucy Hough speaks to environment correspondent Damien Gayle – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Ulrich Siegmund, the charismatic young leader of the AfD party in Saxony-Anhalt, has been labelled Germany’s most dangerous man by Der Spiegel. John Kampfner explains why. Help support our independent journalism at theguardian.com/infocus

Iran has accused the US of a ‘war crime’ after a missile strike killed at least four people, including a young child, and injured 68 at a wedding at a private house in southern Iran. A month-long uneasy truce between the US and Iran appears to have collapsed after US strikes on Larak Island on Saturday in the strait of Hormuz. Iran has responded by launching drones and missiles on US bases across the Middle East, including Gulf States. Lucy Hough speaks to Middle East correspondent Will Christou – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Thirty years after Tupac Shakur’s death, a man has been found guilty of killing the hip-hop legend. William Shaw on the star’s life, legacy and untimely death. Help support our independent journalism at theguardian.com/infocus

A British activist who was forcibly abducted by Israeli settlers in the occupied West Bank has been deported to the UK. The treatment of 22-year-old Finn Joughin comes after a surge of settler violence against Palestinian people in the West Bank that has been widely condemned internationally and also by many prominent figures within Israel. Lucy Hough speaks to the Guardian’s chief Middle East correspondent, Emma Graham-Harrison – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

The Guardian’s chief culture writer Charlotte Higgins on why she was inspired to learn Ukrainian and what it taught her about its people. Help support our independent journalism at theguardian.com/infocus

Revisited: Guardian journalist Michael Safi looks into the world of artificial intelligence, exploring the dangers and promises it holds for society. Help support our independent journalism at theguardian.com/infocus