This photo taken on on November 25, 2025 shows a guide demonstrating the Casio 14-A calculator, invented in 1957, at the Toshio Kashio Memorial Museum of Invention in Tokyo. Artificial intelligence may eventually call time on the humble plastic calculator, but Japan's Casio still sells tens of millions each year and even sees opportunities for expansion. Generative AI models are closing in on human mathematicians' skills -- achieving gold-level scores for the first time this year at a prestigious global competition. (Photo by GREG BAKER / AFP via Getty Images) / To go with 'JAPAN-THAILAND-BUSINESS-TECHNOLOGY-AI-CALCULATORS' by Katie Forster, with Watsamon Tri-Yasakda

This photo taken on November 18, 2025 shows a household goods vendor using a calculator to tally up a customer's items at a market in Bangkok. Artificial intelligence may eventually call time on the humble plastic calculator, but Japan's Casio still sells tens of millions each year and even sees opportunities for expansion. Generative AI models are closing in on human mathematicians' skills -- achieving gold-level scores for the first time this year at a prestigious global competition. (Photo by Lillian SUWANRUMPHA / AFP via Getty Images) / To go with 'JAPAN-THAILAND-BUSINESS-TECHNOLOGY-AI-CALCULATORS' by Katie Forster and Watsamon Tri-Yasakda

In this photo taken on on November 25, 2025, relay switches are seen behind a glass panel on the Casio 14-A calculator, invented in 1957, at the Toshio Kashio Memorial Museum of Invention in Tokyo. Artificial intelligence may eventually call time on the humble plastic calculator, but Japan's Casio still sells tens of millions each year and even sees opportunities for expansion. Generative AI models are closing in on human mathematicians' skills -- achieving gold-level scores for the first time this year at a prestigious global competition. (Photo by GREG BAKER / AFP via Getty Images) / To go with 'JAPAN-THAILAND-BUSINESS-TECHNOLOGY-AI-CALCULATORS' by Katie Forster, with Watsamon Tri-Yasakda

This photo taken on on November 25, 2025 shows a guide demonstrating the Casio 14-A calculator, invented in 1957, at the Toshio Kashio Memorial Museum of Invention in Tokyo. Artificial intelligence may eventually call time on the humble plastic calculator, but Japan's Casio still sells tens of millions each year and even sees opportunities for expansion. Generative AI models are closing in on human mathematicians' skills -- achieving gold-level scores for the first time this year at a prestigious global competition. (Photo by GREG BAKER / AFP via Getty Images) / To go with 'JAPAN-THAILAND-BUSINESS-TECHNOLOGY-AI-CALCULATORS' by Katie Forster, with Watsamon Tri-Yasakda

This photo taken on November 12, 2025 shows calculator parts along the assembly line at the Casio factory in Thailand's Nakhon Ratchasima province. Artificial intelligence may eventually call time on the humble plastic calculator, but Japan's Casio still sells tens of millions each year and even sees opportunities for expansion. Generative AI models are closing in on human mathematicians' skills -- achieving gold-level scores for the first time this year at a prestigious global competition. (Photo by Lillian SUWANRUMPHA / AFP via Getty Images) / To go with 'JAPAN-THAILAND-BUSINESS-TECHNOLOGY-AI-CALCULATORS' by Katie Forster and Watsamon Tri-Yasakda

This photo taken on on November 25, 2025 shows a Casio employee demonstrating current calculator models at the Toshio Kashio Memorial Museum of Invention in Tokyo. Artificial intelligence may eventually call time on the humble plastic calculator, but Japan's Casio still sells tens of millions each year and even sees opportunities for expansion. Generative AI models are closing in on human mathematicians' skills -- achieving gold-level scores for the first time this year at a prestigious global competition. (Photo by GREG BAKER / AFP via Getty Images) / To go with 'JAPAN-THAILAND-BUSINESS-TECHNOLOGY-AI-CALCULATORS' by Katie Forster, with Watsamon Tri-Yasakda

In this photo taken on on November 25, 2025, the four Kashio brothers who invented and built the Casio 14-A calculator in 1957, are seen standing behind the calculators in a photo displayed at the Toshio Kashio Memorial Museum of Invention in Tokyo. Artificial intelligence may eventually call time on the humble plastic calculator, but Japan's Casio still sells tens of millions each year and even sees opportunities for expansion. Generative AI models are closing in on human mathematicians' skills -- achieving gold-level scores for the first time this year at a prestigious global competition. (Photo by GREG BAKER / AFP via Getty Images) / To go with 'JAPAN-THAILAND-BUSINESS-TECHNOLOGY-AI-CALCULATORS' by Katie Forster, with Watsamon Tri-Yasakda

This photo taken on November 18, 2025 shows calculators for sale in a market in Bangkok. Artificial intelligence may eventually call time on the humble plastic calculator, but Japan's Casio still sells tens of millions each year and even sees opportunities for expansion. Generative AI models are closing in on human mathematicians' skills -- achieving gold-level scores for the first time this year at a prestigious global competition. (Photo by Lillian SUWANRUMPHA / AFP via Getty Images) / To go with 'JAPAN-THAILAND-BUSINESS-TECHNOLOGY-AI-CALCULATORS' by Katie Forster and Watsamon Tri-Yasakda