LinkedIn · Jul 2025
Matt Lee says Talc ran an 18,000-clinical-query workload, which supports the company’s current medical-abstraction positioning.
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Talc is a YC-backed Seattle startup whose current public site focuses on extracting structured data from medical notes and patient charts at scale; earlier YC launch materials also describe it as an LLM debugger/evaluation platform, so its public positioning has shifted over time.
Primary product
AI platform for extracting structured data from medical notes and patient charts
Founded
2023
Headquarters
Seattle, Washington, United States
Team size
1-10
Industry
Artificial Intelligence
Sub-industry
LLM evaluation, debugging, and medical abstraction tooling
Offices
0 jobs at Talc
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Business model
Stage
Seed
Total raised
$500K
Latest round
Seed · Jul 2023
Latest amount
$500K
Jul 2023 · Y Combinator
Public evidence suggests a very small, founder-led, highly technical YC startup culture. The founders emphasize trust, long-standing personal partnership, and shipping production AI tooling for real-world workflows.
Compensation
No public salary bands or benefits package were found. YC Jobs shows no open roles, and there is no public compensation policy on the website.
Pricing
Not publicly listed on the website; the HN launch thread says Talc charges per test created, and optionally per example graded against a test.
Differentiators
Technology
Customers
Competitors
Estimated revenue
Approximately $257k/year
Estimated monthly visits
940
LinkedIn · Jul 2025
Matt Lee says Talc ran an 18,000-clinical-query workload, which supports the company’s current medical-abstraction positioning.
Hacker News · Jan 2024
Launch thread says Talc does automated QA for LLM apps, generates domain-specific test cases from customers' knowledge bases, and charges per test created and per graded example.
GeekWire · Sep 2023
Profiles Talc among Seattle YC startups; founders Matt Lee and Max Kerr describe the product as end-to-end evaluation of LLM apps and discuss their technical background and climbing-partner relationship.
Y Combinator
YC launch page describes Talc as an LLM debugger that replays sessions line by line, lets users edit prompts and inputs, and regression-tests saved use cases.