British fintech Revolut slashes AI coding costs 10x by cutting out Claude and going self-hosted

Revolut is a fintech giant and they seem to prioritize open source and it makes their AI expenses more stable. They switched to GLM. before that, they were experimenting with Gemini and Claude. Apparently, they realized the bottleneck wasn't the code, but letting AI models deal with debugging and Jira/Confluence. They didn't eliminate GPT/Claude entirely, only using those for vision work as GLM is text only. I can see more companies doing similar in the future, if they are already not doing it.