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14,448 startups · 29 programs

Sciloop

Active · Expert STEM reasoning data for frontier AI labs.

WebsiteYC profile

Why it ranks

How the rank works
8signal of 100 · rising 7
  • team of 6Team size · YC's directory+4.4
  • went through YCProgram · this site+4

A sum of public facts, not a judgement and not investment advice.

Competitors

AIHubShared: training data, big data, frontierYC X26San FranciscoStartup →AIAfterQueryShared: data labeling, big data, frontierYC W25San FranciscoStartup →AIMarkovShared: data labeling, frontier, labsYC S26San FranciscoStartup →AIPerit.AIShared: data labeling, labs, expertYC F26San FranciscoStartup →AIGuide LabsShared: training data, frontier, labsYC W24San FranciscoStartup →
Companies closest to Sciloop
Company
HubShared: training data, big data, frontierYC X26ActiveAI, Data, Devtools
AfterQueryShared: data labeling, big data, frontierYC W25ActiveAI, Data, Devtools
MarkovShared: data labeling, frontier, labsYC S26ActiveAI, Data, Devtools
Perit.AIShared: data labeling, labs, expertYC F26ActiveAI, Data
Guide LabsShared: training data, frontier, labsYC W24ActiveAI, Devtools

Adjacent

AIDatoricShared: training data, data labeling, frontierYC S26San FranciscoStartup →AIOutput LabsShared: hardest problem, reasoning, frontierYC S21New York CityStartup →AISureformShared: data labeling, frontier, trainingYC X25San FranciscoStartup →AITensorTestShared: training data, data labeling, labsYC W26San FranciscoStartup →AIAcquiredSepal AIShared: training data, data labeling, labsYC S24San FranciscoStartup →
Companies next to Sciloop
Company
DatoricShared: training data, data labeling, frontierYC S26ActiveAI, Data
Output LabsShared: hardest problem, reasoning, frontierYC S21ActiveAI
SureformShared: data labeling, frontier, trainingYC X25ActiveAI, Data
TensorTestShared: training data, data labeling, labsYC W26ActiveAI, Data
Sepal AIShared: training data, data labeling, labsYC S24AcquiredAI, Data

Also from F25 in AI

All of F25
AISellRazeThe fastest way to sell online.YC F25San FranciscoStartup →AISorceTinder for jobsYC F25San FranciscoStartup →AIZavoUnlocking the world’s most valuable data for frontier AI.YC F25LondonStartup →AIAbsurdThe production canvas for AI film teamsYC F25Los AngelesStartup →AIAirCaps AIVoice AI that hears what other models miss.YC F25San FranciscoStartup →AIAlderAI employees for finance, starting with accounts receivable.YC F25San FranciscoStartup →
Company
SellRazeThe fastest way to sell online.team of 7ActiveAI
SorceTinder for jobsteam of 6ActiveAI
ZavoUnlocking the world’s most valuable data for frontier AI.team of 8ActiveAI, Data
AbsurdThe production canvas for AI film teamsteam of 10ActiveAI
AirCaps AIVoice AI that hears what other models miss.team of 5hiringActiveAI, Devtools
AlderAI employees for finance, starting with accounts receivable.team of 2hiringActiveAI

Founders

  • Bilal AsmatullahFounder/CEO
  • Osman SiddiqueFounder

About Sciloop

Sciloop creates expert-level math and physics problems that frontier AI models can't solve, then sells the data to AI labs for training and evaluation. Our problems are created by IPhO and IMO medalists, the top 0.01% of STEM talent globally. On our benchmark, models like GPT 5.4 Pro and Gemini 3.1 Pro score 0-5% on our hardest problems. We work with AI labs to supply continuous, fresh training data that pushes the frontier of mathematical and scientific reasoning. Founded by Bilal and Osman, International Physics Olympiad medalists from MIT with hands-on ML research experience at MIT CSAIL.

YC batch
F25 · Fall 2025
Status, per YC
Active
Category
AI, Data, Developer tools
Team size
6
Location
San Francisco, CA, USA
Founded
2025
Checked
6h ago

YC tags: Marketplace, Data Labeling, Big Data, AI

Sciloop in F25: 146 companies, 88% AI

LinkedIn

Sciloop: questions

Which YC batch was Sciloop in?

Sciloop was in Y Combinator's Fall 2025 batch (F25).

Is Sciloop still active?

Y Combinator lists Sciloop as active.

Who founded Sciloop?

Sciloop's founders, as listed on its YC page: Bilal Asmatullah (Founder/CEO), Osman Siddique (Founder).

Where is Sciloop based?

Sciloop lists San Francisco, CA, USA as its location on YC's directory.