This old Nokia phone got an AI Upgrade it was never designed for

In late September, Turkish entrepreneur Emir Karşıyakalı took to X to show off Claude S40, an app he vibe coded to make his old Nokia 6300 a bit more useable in 2026. In its original form, his app app allowed the 6300 to connect with Claude over a Java and Go backend. Since then, Karşıyakalı has updated the software to make it work with all of the major chatbots, including ChatGPT, Gemini and Grok, and renamed the app Aikon -- that's Nokia spelt backwards -- to reflect the greater compatibility. Outside of a phone running either Nokia's S40 or S60 operating systems, you'll need a Go server to hold the API key from Anthropic, Google, OpenAI or SpaceXSI. This part of the equation is essential since it's the server that communicates with Claude, ChatGPT, Gemini or Grok, and truncates their responses into 8kB blocks your old phone can read.