smart-model-switching: Automatic Claude Model Selection That Cuts Your Bill in Half

Auto-route tasks to the cheapest Claude model that works correctly. Haiku for simple, Sonnet for medium, Opus for complex. No manual routing required.

TL;DR

Auto-route tasks to the cheapest Claude model that works correctly. Three-tier progression: Haiku → Sonnet → Opus. Classify before responding.

10-Second Pitch

What it does: Inspects each task, picks the right Claude model tier automatically
Key win: Haiku handles ~60% of typical queries at ~1/20th Sonnet cost
Best for: Any product using Claude API at volume

Setup

bash pip install claude-model-router claude-router configure --models haiku sonnet opus ` `bash claude-router route "Summarize this document" # → Haiku claude-router route "Write a full REST API spec" # → Sonnet claude-router route "Design a fault-tolerant distributed system" # → Opus

Pros / Cons

Pros	Cons
40-60% cost reduction on typical AI workloads	Requires monitoring to tune classification
Automatic escalation for hard problems	Some complex tasks may need manual model pick
Drop-in for existing API integrations

Verdict

The era of picking one Claude model and using it for everything is over. smart-model-switching handles the routing for you — install it and watch the API bill drop.