Overview
Salaries
Products
People
Growth
Offices
Financials

Funding and backers

Backers
1
Y Combinator
Momentum
0/100
no fresh signals
Last sign of life
2 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Oct 1, 2025 Launched on Hacker News Show HN: Butter, a muscle memory cache for LLMs Jan 2025 Went through Y Combinator
Tractionpublic signals, read monthly
Web presence
top 2%
of 133.2M domains by links, Common Crawl
GitHub stars
2 public repositories
Launched on Hacker News
23 points
Backed byfrom the funds' portfolios and accelerator catalogs
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Overview

Butter is building bVisor, an incredibly lightweight sandbox runtime for AI agents.

Offices

Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
San Francisco United States
HQ