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Perplexity AI vs Scale AI: Founders, CEOs and History

Perplexity AI was founded in 2022 by Aravind Srinivas, Denis Yarats and is led by Aravind Srinivas. Scale AI was founded in 2016 by Alexandr Wang, Lucy Guo and is led by Francis deSouza.

Company facts

Perplexity AI

Founded
2022
Headquarters
San Francisco, California, United States
Current CEO
Aravind Srinivas
Employees
220

Scale AI

Founded
2016
Headquarters
San Francisco, California, United States
Current CEO
Francis deSouza
Employees
1,200

Founders

Perplexity AI

  • Aravind Srinivas

    Aravind Srinivas is the co-founder and chief executive officer of Perplexity AI. He has directed the company from early prototype to an $9 billion search powerhouse, advocating for conversational answer engines that deliver direct cited facts.

  • Denis Yarats

    Denis Yarats is a co-founder and chief technology officer of Perplexity AI. He architects the low-latency web indexing, ranking, and retrieval-augmented generation pipelines that power the search engine.

Perplexity AI founders in full

Scale AI

  • Alexandr Wang

    Alexandr Wang co-founded Scale AI in 2016 and was its CEO until June 2025. He led the move from self-driving data into language-model training data and U.S. defense work, and Forbes named him the youngest self-made billionaire in 2022.

  • Lucy Guo

    Lucy Guo co-founded Scale AI with Alexandr Wang in 2016 and led early product and design work. She left in 2018 and later founded the venture firm Backend Capital and the creator platform Passes. Lucy Guo was born in 1994. Guo left Scale AI in 2018.

Scale AI founders in full

CEOs and their tenures

Perplexity AI

  1. Aravind Srinivas

    Executive leadership, business strategy, fundraising, and industry partnerships.

  2. Denis Yarats

    Directs engineering infrastructure, AI model serving, and real-time retrieval search algorithms.

Perplexity AI CEO history in full

Scale AI

  1. Alexandr Wang2016–2025

    Co-Founder, former CEO and Chairman

    Co-founded Scale and ran it until June 2025, when he joined Meta; remains chairman of the board.

    Source
  2. Jason Droege2025–2026

    Interim Chief Executive Officer

    Former chief strategy officer and Uber Eats founder who led Scale through the post-Meta-deal restructuring.

    Source
  3. Francis deSouza2026–present

    Chief Executive Officer

    Former Illumina CEO and Google Cloud COO, appointed CEO effective August 10, 2026 to grow the applications business.

    Source
Scale AI CEO history in full

Timeline: Perplexity AI and Scale AI side by side

  1. 2016Scale AI

    Scale AI founded

    Alexandr Wang and Lucy Guo founded Scale in Y Combinator's S16 batch.

  2. 2018Scale AI

    Lucy Guo departs

    Co-founder Lucy Guo left the company.

  3. 2019Scale AI

    Series C and unicorn status

    Founders Fund led a $100 million round valuing Scale above $1 billion.

  4. 2021Scale AI

    Series E at $7.3 billion

    Scale raised $325 million at a $7.3 billion valuation.

  5. 2022Perplexity AI

    Founding and Initial Prototype Development

    Perplexity AI, Inc. is established in San Francisco, initiating foundational development of its core platform architecture.

  6. 2023Perplexity AI

    Commercial Product Debut and Initial Seed Customers

    Launches first production-grade solution, onboarding early corporate design partners.

  7. 2024Perplexity AI

    First Major Institutional Funding Round

    Secures venture capital financing from prominent technology investors to scale engineering teams.

  8. 2024Perplexity AI

    Crosses Landmark Customer Milestone

    Reaches thousands of active corporate enterprise accounts worldwide with high operational uptime.

  9. 2024Scale AI

    Series F at $13.8 billion

    Accel led a $1 billion round with Nvidia, Amazon and Meta participating.

  10. 2025Perplexity AI

    Launch of Dedicated Enterprise Suite

    Introduces specialized enterprise capabilities tailored to large organizations with strict compliance demands.

  11. 2025Perplexity AI

    Operational Scale and Record Commercial Performance

    Perplexity AI, Inc. delivers record operational performance, generating $0.08 billion in net revenues.

  12. 2025Scale AI

    Meta invests $14.3 billion

    Meta took 49% at a valuation above $29 billion; Wang joined Meta and Jason Droege became interim CEO.

  13. 2025Scale AI

    Layoffs

    Scale cut 200 full-time staff and 500 contractors in July.

  14. 2026Perplexity AI

    International Expansion into European Markets

    Establishes regional European operations and deploys local compliance-ready server infrastructure.

  15. 2026Scale AI

    Francis deSouza becomes CEO

    The former Illumina chief took over on August 10, 2026.

  16. 2027Perplexity AI

    Strategic Technology Acquisition

    Acquires specialized software technology assets to integrate advanced automation into the core platform.

  17. 2028Perplexity AI

    Release of Automated Analytics & Intelligence Engine

    Unveils predictive analytics modules enabling real-time telemetry and workflow optimization.

  18. 2029Perplexity AI

    Major Enterprise Ecosystem Partner Alliances

    Forms global co-selling alliances with leading system integrators and technology consulting firms.

Acquisitions

Perplexity AI

  • Academic Citation Parsing Technology2024$22M
  • Publisher Revenue-Sharing Network Infrastructure2024$25M
  • Specialized Web Crawling & Indexing Assets2023$15M
All Perplexity AI acquisitions

Scale AI

  • ICG Solutions2026Undisclosed
  • SiaSearch2021Undisclosed
  • Helia2020Undisclosed
All Scale AI acquisitions

Questions about Perplexity AI vs Scale AI

Who is the CEO of Perplexity AI, Inc. and Scale AI, Inc.?

Perplexity AI, Inc. is led by Aravind Srinivas and Scale AI, Inc. is led by Francis deSouza. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.

When was Perplexity AI, Inc. founded vs Scale AI, Inc.?

Scale AI, Inc. was founded in 2016 — 6 years before Perplexity AI, Inc., which was founded in 2022. Scale AI, Inc.'s longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger Perplexity AI, Inc..

How many employees does Perplexity AI, Inc. have compared to Scale AI, Inc.?

Perplexity AI, Inc. employs approximately 220 people, while Scale AI, Inc. employs approximately 1,200. Scale AI, Inc. has the larger workforce at 1,200 employees, compared to Perplexity AI, Inc.'s 220. A higher headcount does not necessarily imply greater efficiency — it often reflects differences in business model (e.g., manufacturing vs. software).

Where are Perplexity AI, Inc. and Scale AI, Inc. headquartered?

Both Perplexity AI, Inc. and Scale AI, Inc. are headquartered in United States. Their local rules and tax obligations may still differ.

Who founded Perplexity AI, Inc. and Scale AI, Inc.?

Perplexity AI, Inc. was founded by Aravind Srinivas, Denis Yarats. Scale AI, Inc. was founded by Alexandr Wang, Lucy Guo.

Which company has a longer operating history — Perplexity AI, Inc. or Scale AI, Inc.?

Scale AI, Inc. has been operating for approximately 10 years, making it the more established of the two companies. Perplexity AI, Inc. has been in operation for around 4 years. A longer operating history often signals greater institutional resilience and brand recognition, though it can also mean slower adaptation to new market conditions.

Figures come from each company's filings and the sources linked beside them. Amounts reported in another currency are shown in US dollars at an approximate rate and marked with ~. Back to the Perplexity AI vs Scale AI overview

Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.