Paper Instruments
Open-source frontier models for knowledge work
San Francisco, United States · Founded 2025
- Headquarters
- San Francisco, California
- Employees
- 1–10
- Founded
- 2025
- Business Model
- B2B
- Website
- paperinstruments.com
About
Paper Instruments, formerly known as The LLM Data Company, trains frontier AI models and builds post-training infrastructure and agent-first software for knowledge work. The company publishes open research on model post-training, agent evaluation, and reinforcement learning, and its product lineup includes Paper Office's agent-first document libraries, the Feather agent harness for high-stakes knowledge work, and the upcoming Inkwell family of frontier knowledge-work models.
Summary
Paper Instruments is an Artificial Intelligence company based in San Francisco, United States, founded in 2025.
Tech & App Stack
3 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.
Similar Companies
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artifi...
Anthropic develops reliable, interpretable, and steerable AI systems, translating frontier safety...
xAI builds AI systems, including Grok, with frontier reasoning, voice, and generative media capab...
Waymo is an autonomous driving technology company with a mission to make it safe and easy for peo...
Databricks provides a unified data and AI platform that helps enterprises build and run applicati...
AI company focused on applying artificial intelligence to physical tasks, launched with $6.2B ini...
Your company? Embed this profile
Add the live badge to your site — it stays current as your funding data updates.
<a href="https://indexed.vc/companies/paper-instruments"><img src="https://indexed.vc/api/badge/company/paper-instruments" alt="Paper Instruments on Indexed.vc" width="260" height="76" /></a>