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Sieve (YC W22) — The multimodal data lab

Sieve builds the data and environments frontier AI labs use to train the next generation of multimodal systems. AI is moving beyond chatbots into video, audio, images, software, robotics, and interactive worlds.

Sieve is a Y Combinator company in the Winter 2022 batch. Its directory entry describes it as: The multimodal data lab. The founders listed are Mokshith Voodarla (Founder), Abhinav Ayalur (Founder) (Y Combinator directory entry, January 30, 2022).

6 more companies from YC Winter 2022 ↓

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Sieve

New accelerator entry · 2022-01-30 · the record

Winter 2022
batch
34
people
Growth
stage
United States of America
region
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What the record says

BatchWinter 2022
Announced2022-01-30
StageGrowth
StatusActive
Team size34
IndustryB2B
Sub-industryB2B -> Infrastructure
SectorsDeveloper Tools, Video, Data Labeling, Data Engineering, AI
RegionsUnited States of America, America / Canada
BasedSan Francisco, CA, USA
HiringYes
Sitehttps://sievedata.com/

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Also in YC Winter 2022

Same batch, B2B first.

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In their words

Sieve builds the data and environments frontier AI labs use to train the next generation of multimodal systems. AI is moving beyond chatbots into video, audio, images, software, robotics, and interactive worlds. The next generation of models will need to understand how the world looks, sounds, moves, responds, and changes over time. Progress is bottlenecked by one thing: high-quality data. Sieve brings together exabyte-scale infrastructure, novel multimodal understanding techniques, large-scale sourcing, and deep research partnerships to create datasets and environments with unmatched precision, quality, and speed. This has earned the trust of frontier AI labs, Fortune 100 companies, and fast-growing AI startups working on generative media, robotics, computer use, world models, and agentic systems.

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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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What the Full Report on Sieve 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

    1 cited source found

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Sourced from the company's Y Combinator directory entry.

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Sieve: Accepted into Y Combinator Winter 2022
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Permanent URL: https://mentionfox.com/funding/yc-sieve
Last updated 2026-10-20
Primary record: Y Combinator directory entry
Sieve (YC W22) — The multimodal data lab. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-sieve