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title: GitHub - Rodiun/frugon: Free, local, open-source LLM...
description: Frugon is a free, local, open-source Python tool that analyzes LLM API call logs to identify cost savings through model routing. It reads JSONL log files in...
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> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# GitHub - Rodiun/frugon: Free, local, open-source LLM cost analyzer - see where your LLM bill leaks, on your machine.

**[Hacker News](https://daily.dev/sources/hn)** · 7 min read · 0 upvotes · 0 comments

## Summary

Frugon is a free, local, open-source Python tool that analyzes LLM API call logs to identify cost savings through model routing. It reads JSONL log files in OpenAI format, prices your real traffic against multiple candidate models entirely on your machine, and recommends which calls to route to cheaper models and which to keep on the current model. It includes a local HTTP proxy shim for capturing logs, optional quality measurement using your own API keys, and can generate shareable HTML/Markdown reports. Based on RouteLLM research, typical savings range from 30–50% for mixed workloads. Data never leaves your machine.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://github.com/Rodiun/frugon>

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---

Tags: [#python](https://daily.dev/tags/python), [#cli](https://daily.dev/tags/cli), [#anthropic](https://daily.dev/tags/anthropic), [#finops](https://daily.dev/tags/finops)

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