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guidesMay 11, 2026· 5 min read

How to cache the Vercel AI SDK LLM calls with Crowkis

Add a semantic cache to the Vercel AI SDK so repeated and reworded questions are served for free, no rewrite, self-hosted.

The cheapest token is the one you never spend twice. If you build with the Vercel AI SDK, most of that repetition is invisible in your code but very visible on your bill. A semantic cache in front of your model calls fixes it.

The lowest-friction path is the OpenAI-compatible gateway: point the Vercel AI SDK's base URL at Crowkis and every model call flows through a semantic cache. Repeated and reworded prompts are served from cache with no upstream call; new ones pass through and get cached.

the Vercel AI SDK + Crowkis gateway
# point the Vercel AI SDK at the Crowkis gateway
base_url = "http://127.0.0.1:6380/v1"   # semantic cache in front of your provider
In plain words: You don't restructure your the Vercel AI SDK app. You change where the calls go, and repeats stop costing money.

On repetitive workloads this cuts LLM costs up to 60-70% on repetitive workloads, and every hit comes back with a confidence score so reuse stays safe. It's one self-hosted binary, Redis-compatible, free to run.