Free AI Tools for cost optimization

An open-source utility that keeps your Claude Code prompt cache warm to avoid costly re-encodings when subagents run longer than five minutes.

Millwright is an open-source, self-hosted LLM router that routes AI requests to the lowest-cost model providers based on policy, preserving prompt caches and controlling spend.

A deadline-aware LLM router that reduces AI inference costs by automatically finding cheaper service tiers within a user-specified time window.

Frugon is a free, open-source LLM cost analyzer that identifies where your LLM bill leaks by analyzing your call logs locally.

A drop-in proxy that routes every prompt to the best AI model in <50ms, cutting costs 40-70% with just an endpoint change.

An open-source utility that keeps your Claude Code prompt cache warm to avoid costly re-encodings when subagents run longer than five minutes.

Millwright is an open-source, self-hosted LLM router that routes AI requests to the lowest-cost model providers based on policy, preserving prompt caches and controlling spend.

A deadline-aware LLM router that reduces AI inference costs by automatically finding cheaper service tiers within a user-specified time window.

A unified API platform for LLM inference with cost optimization, routing, observability, and automatic failover.

Frugon is a free, open-source LLM cost analyzer that identifies where your LLM bill leaks by analyzing your call logs locally.

Edgee is an agent gateway that cuts token costs up to 50% by compressing, routing, and observing LLM traffic for coding agents.

A drop-in proxy that routes every prompt to the best AI model in <50ms, cutting costs 40-70% with just an endpoint change.

ZeroGPU is a compute efficiency layer that helps AI applications and agents reduce costs by routing high-volume inference tasks to specialized small language models via an edge-powered network.