Coinbase用缓存和默认模型省了一半钱，还让token随便用，想省成本的团队可以照抄作业。
Coinbase CEO Brian Armstrong在推文中介绍了公司通过更优默认设置、智能路由和缓存来控制AI支出增长。他们默认使用开源模型如GLM 5.2和Kimi 2.7，使91%员工未触发使用上限。缓存命中率在LibreChat中从5%提升至60%。这些措施使AI支出降低近一半，同时token使用量持续增长。
> Better Caching – Cache misses are the easiest way to drive your cost up. All of our requests ar...
> Better Caching – Cache misses are the easiest way to drive your cost up. All of our requests are cache aware, so we’re reusing a warm cache wherever possible. We do this for you in Deep Agents - see our blog on it here: https://t.co/a1zcMR7Sqy Brian Armstrong @brian_armstrong How to keep AI spend flat while token usage grows exponentially: Not with friction and spend alerts. With better defaults, routing, and caching. Better Defaults (not Usage Caps) – Engineers can choose any model they want, but defaults matter. We’re experimenting with defaulting to open weight models like GLM 5.2 and Kimi 2.7 through our LLM gateway, while still encouraging engineers to choose the right model for the task. 91% of our employees were never hitting their usage caps, so instead of lowering caps and driving up alerts, we're moving to cheaper defaults. Note that code reviews use a diversity of models, so they can check each other's work. Better Routing – In our custom harnesses, we preprocess prompts and route to the best model for the job, considering cache hits and model pricing. For instance, you may want a frontier model for planning, but not for execution where they can be overkill. Ultimately, humans shouldn't be choosing models - AI can automate this task. Better Caching – Cache misses are the easiest way to drive your cost up. All of our requests are cache aware, so we’re reusing a warm cache wherever possible. For example, our cache hit rate went from 5% → 60% in LibreChat once properly implemented. Keep Context Lean – Start fresh sessions when switching tasks. Scope file context narrowly. Disconnect unused tools. Don't just compact. The goal isn't fewer tokens used, it's fewer tokens wasted. Better Visibility – Our engineers can use as many tokens as they want, from whatever model they want, but we’ve made usage visible – and the more you spend on AI, the more impact we expect. The goal isn't to suppress usage. It's to build the infrastructure that makes exponential growth sustainable. Putting this into practice has cut our AI spend nearly in half, while our token usage continues to grow. 🔗 View Quoted Tweet 💬 1 🔄 1 ❤️ 10 👀 1631 📊 2 ⚡