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Litmus (YC S26) — Evals for humans

Litmus is building the most accurate framework for evaluating and benchmarking human capability, starting with software. AI will compound small differences in human capability into increasingly large differences in what people can accomplish, while making existing static benchmarks obsolete.

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Litmus

New accelerator entry · 2026-07-08 · the record

Summer 2026
batch
3
people
Early
stage
United States of America
region
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What the record says

BatchSummer 2026
Announced2026-07-08
StageEarly
StatusActive
Team size3
IndustryB2B
Sub-industryB2B
SectorsRecruiting, Data Engineering, AI
RegionsUnited States of America, America / Canada
BasedNew York City, NY, USA
HiringNo
Sitehttps://litmushiring.com/
Founded2025
YC group partnerJared Friedman
Launches posted on YC1
Previously known asAvert, Litmus, Avert

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Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News

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In their words

Litmus is building the most accurate framework for evaluating and benchmarking human capability, starting with software. AI will compound small differences in human capability into increasingly large differences in what people can accomplish, while making existing static benchmarks obsolete. Software is already there: AI can hill-climb any output-based evaluation, while the ability to direct it is becoming the defining advantage. Litmus applies the same approach we already use for model evals to humans – creating world-like environments, and inspecting trajectory instead of just output. Every knowledge industry will soon face the same problem. We build Litmus to tell you what humans are capable of. We're already helping build frontier technical teams at Mercor, Composio, Neo Scholars, and more.

What the site is built with

Next.jsframeworkVercelhostingClerkauth

Read from the page's own HTML and response headers on 10 September 2026, at https://litmushiring.com/. Each badge matched a string the site serves about itself — hover one to see which. Nothing here is a traffic, ranking or revenue figure: those cannot be read off a page and are not claimed.

Want the whole picture on Litmus?

Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News

A Full Report on Litmus: verified, sourced, every claim cited, ready in a few minutes. See pricing.

What the Full Report on Litmus covers

  1. The Short Answer

  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

  7. Warning Bells

  8. Sources

    11 cited sources found

Plus the sections for what you are deciding, which you pick after ordering.

See a sample report

First screen of a real sample Full Report on Target: the verdict, 16 sections, 39 cited sources, dated 2026-09-28A real finished report, first screen. Opens in a new tab.

The full profile

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If you're behind Litmus: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. GetFoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.

Sourced from the company's Y Combinator directory entry, from the company's own site, read directly on 2026-09-06 (litmushiring.com), and from Hacker News, where 3 threads met the matching rule stated beside the count.

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Litmus: Accepted into Y Combinator Summer 2026

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Permanent URL: https://mentionfox.com/funding/yc-litmus-hiring
Last updated 2026-10-10
Primary record: Y Combinator directory entry
Litmus (YC S26) — Evals for humans. MentionFox, 2026-10-10. https://mentionfox.com/funding/yc-litmus-hiring