Butter

AI

llm caching proxy

SHOW HN2025

23points
11comments
#1,886of 3,837 in 2025
Top 50%of 2025 by points

How HN took it

MixedNo clear lean

4 positive, 3 neutral or asking, 0 mixed, 1 critical, out of 8 comments about the project. Thread score +0.39.

Idea: 3 for, 0 againstDocs: 0 for, 1 againstExecution: 1 for, 0 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Simple proxy design makes integration easy via a URL swap

    From 2 comments
    • I've known Erik for a while now — simply incredible founder. Doing this as a simple API proxy makes this practically effortless to integrate into existing systems, just a simple…
      MorganGallant on HN
    • Exciting to see a product like this launch! There are obviously a host of ‘memory’ solutions out there that try to integrate in fancy ways to cache knowledge / save tokens, but I…
      ketan_around on HN
  • Idea of cache reuse for repetitive LLM inference is promising

    From 1 comment
    • logged back in to HN to comment on this. looks really sick - i've been saying for a while that a surprising amount of LLM inference really comes down to repetition down a known…
      samraaj on HN

Objections

  • Value proposition and what gets cached is unclear

    From 2 comments
    • Still not clear - the tool calls come from the model, so what is being cached by Muscle Memory? Also: ``` After my time building computer-use agents, I’m convinced that the…
      bigwheels on HN
    • Are you able to walk through a specific use case or example case in detail? I'm not yet totally grokking what Butter is going to do exactly.
      bigwheels on HN

Requests

  • Concrete walkthrough of a use case

    From 1 comment
    • Are you able to walk through a specific use case or example case in detail? I'm not yet totally grokking what Butter is going to do exactly.
      bigwheels on HN
  • Inject prompt cache tokens to save cost rather than bypass generations

    From 1 comment
    • An interesting alternative product to offer is injecting prompt cache tokens into requests where they could be helpful; not bypassing generations but at least low hanging fruit…
      edunteman on HN

Questions

  • How to integrate with LangChain, AutoGPT and robotics stacks

    From 1 comment
    • looks pretty cool! How would you integrate this into production agent stacks like langchain, autogpt, even closed loop robotics?
      tsvoboda on HN

Alternatives named

  • Prompt caching features offered by LLM providers

    From 1 comment
    • An interesting alternative product to offer is injecting prompt cache tokens into requests where they could be helpful; not bypassing generations but at least low hanging fruit…
      edunteman on HN
  • Memory solutions for LLM knowledge caching

    From 1 comment
    • Exciting to see a product like this launch! There are obviously a host of ‘memory’ solutions out there that try to integrate in fancy ways to cache knowledge / save tokens, but I…
      ketan_around on HN

Category, keywords, summaries and labels on this page were made by AI (Thread Reader v2) and not checked by hand. Each point links to the comments it came from.

Add a badge to your READMEShown on HackerShow
[![Shown on HackerShow](https://hackershow.org/badge.svg)](https://hackershow.org/show/45442177)