LinkedIn · Jul 2025
Matt Lee says Talc ran an 18,000-clinical-query workload, which supports the company’s current medical-abstraction positioning.
Company research
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Overview
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
Seattle, WA, United States
Business model
B2B SaaS
usage-based pricing
developer tools
Funding
Stage
Seed
Total raised
$500K
Latest round
Seed · Jul 2023
Latest amount
$500K
Jul 2023 · Y Combinator
People & investors
Work & culture
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.
Product & market
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
- —Line-by-line replay of AI sessions
- —Editable inputs/prompts for specific messages
- —Regression tests against saved use cases
- —Cited outputs with ambiguous-case flagging for human review
- —Custom abstraction rubrics for notes/charts
- —CLI/API and CI/CD integration support
Technology
Cloudflare
PostHog
Amazon S3
Google Workspace
Amazon Web Services
Google Hosted Libraries
jQuery
Webflow Ecommerce
HTTP/3
HSTS
Open Graph
Webflow
Customers
PupPilot
enterprises
research centers
hospitals
Competitors
Autofixer.com
irlTrack
Hivearchive
Scale & contact
Estimated revenue
Approximately $257k/year
Estimated monthly visits
940
Latest news
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.
Jobs and careers at Talc
0 jobs at Talc
No open positions
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