Revolut cut its AI coding bill 90% by swapping Claude for self hosted GLM
Revolut has made a self hosted Chinese open weights model, GLM 5.3, the default coding AI for about 2,000 engineers. It runs on 56 Nvidia B200 GPUs at roughly $0.30 per million tokens, and the bank says its invoice is now a tenth of what it paid Anthropic and OpenAI. Here are the facts, followed by djcroman's take.