Who Sells Data 159 vendors · updated Oct 13, 2026Talk to the founder

Paper Instruments

Paper Instruments post-trains language models and builds evaluation benchmarks, post-training infrastructure, and agent software for AI developers working on knowledge-intensive tasks.

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Headquarters
San Francisco, United States
Founded
2025
Headcount
1-10
Total funding
$3.6M
Latest round
Seed, $500K, June 2025

Source:tracxn.com

Trust & data

How the vendor protects buyer material, where its data comes from, and where it can run.

Data sources
Synthetic / generatedExpert or contractor-created

Source:paperinstruments.com

Quotes
  • Synthetic / generated: We built a synthetic data-generation pipeline that transformed production traffic into constrained, evaluable queries, then developed generalizable rubrics for grading non-verifiable tasks.
  • Expert or contractor-created: We directed knowledge-work professionals to refine those rubrics around real-world priorities.
Stated confidentiality practices
No public customer-data confidentiality or IP-protection practices stated.
Not publicly listed
SOC 2, Trust center, Other certifications, Deployment, Exclusivity

What they sell

Named customers
Perplexity

Every change to these facts is kept in the public claims log. Record co_a952f70a05c9.