Prompt Routing Python Packages

xrouter-llm

A prompt-aware LLM router that predicts which models can complete each request, then selects the cheapest capable one: 53.2% lower cost and +1.9 pts completion on our tested dataset.

nadirclaw

Open-source LLM router & AI cost optimizer. Routes simple prompts to cheap/local models, complex ones to premium — automatically. Drop-in OpenAI-compatible proxy for Claude Code, Codex, Cursor, OpenClaw. Saves 40-70% on AI API costs. Self-hosted, no middleman.

llm-dispatch

Route prompts to the right LLM by complexity. Supports Groq, OpenAI, Anthropic. Save cost, keep quality.

routesmith

Auto-route coding agent tasks to the best model in your IDE. Python library + MCP server for Claude Code, Codex, Gemini CLI, Copilot, Cursor, and Aider.

promptrouter

Reduce your LLM costs by 40-70% automatically. Routes prompts locally, compacts context, tracks real savings.

claude-router

Embedding-based scaffold router for Claude API. Routes tasks to the right scaffold using centroid matching. By Hermes Labs.