---
format: "aidr-story-markdown/v1"
id: "9d2417f40cde50f04449dce634da1b80f95c91368ab885e5da40c31359ed21bb"
canonical_url: "https://aidr.today/9d2417f4?lang=en"
title: "llm-echo 0.5"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
fallback_fields: []
published_at: "2026-10-18T23:16:16.000Z"
category: "Open Source"
topics: ["llm","open-source"]
source_urls: ["https://simonwillison.net/2026/Oct/18/llm-echo/"]
summary: "llm-echo 0.5 has been released, updating the debug plugin's simulated token usage counts to account for tool calls, system prompts, and reasoning tokens."
---

# llm\-echo 0\.5

> [Open the canonical story](<https://aidr.today/9d2417f4?lang=en>)

**Published:** 2026-10-18T23:16:16.000Z
**Category:** Open Source
**Topics:** llm, open\-source

## Summary

llm\-echo 0\.5 has been released, updating the debug plugin's simulated token usage counts to account for tool calls, system prompts, and reasoning tokens\.

## Sources

- [Story source](<https://simonwillison.net/2026/Oct/18/llm-echo/>)