Saber Interactive has admitted that its upcoming game Rideshare "Stimulator" features generative AI writing, while denying claims from former lead writer Stella Sacco that she was replaced by ChatGPT midway through development. Sacco wrote on Bluesky that "Saber replaced me with ChatGPT midway through development. All the passenger voices were AI too. Either they changed direction at some point or they’re not disclosing it on Steam." Saber responded with a statement saying "Neither Saber nor Unigine have replaced any writers with AI for Rideshare or any other game. In fact, Saber's staff of writers has tripled since 2023. Rideshare's story was written entirely by real people." The company acknowledged that an experimental, free-ride mode "by necessity incorporates AI as the number of passengers in the game is infinite," using LLMs and voice generation to give passengers "a limitless number of things that they could say." Saber also noted that "None of our 3000+ employees have to worry about being replaced by AI." The game has drawn attention for its "odd swipes" at Gearbox Software CEO Randy Pitchford, with Saber CEO Matt Karch telling Gamefile "The dig is because Randy took shots at Embracer in Borderlands 4. Without Embracer, Randy is performing magic tricks at birthday parties for a living." The AI use has not been disclosed on the game's Steam listing, contravening Valve's AI policy