Coinbase CEO @brian_armstrong in June: "My guess is that within 12-18 months, 80% of our workloads will be going toward models that are 99% cheaper." "20% of it will still go to frontier models where you need to be IQ-maxxing." "Open source models are 3-6 months behind the frontier models, but they're 99% cheaper for inference." "So we made some very simple changes, like more intelligent routing of prompts, depending on the complexity of the query, to the right model. We started caching…