---
id: "2026-08-05-discovery-loop-founded"
url: "https://postcutoff.com/e/2026-08-05-discovery-loop-founded/"
as_of: "2026-11-13T13:49:00+01:00"
date: "2026-08-05"
date_precision: day
category: business
importance: 4
confidence: high
status: [Confirmed]
sources: 7
editor: human editor
human_review: null
version: "2026-10-04"
---

As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2026-08-05-discovery-loop-founded/

# Jeff Dean, Sanjay Ghemawat, Oriol Vinyals and Quoc Le leave Google to found Discovery Loop, a PBC to automate ML research and science

On 5 Aug 2026 Google's chief scientist Jeff Dean left after 27 years to co-found Discovery Loop (@DiscoLoopAI), a public benefit corporation with Sanjay Ghemawat, Oriol Vinyals and Quoc Le. It aims to "automate the experimental loop" (propose, run, evaluate and iterate on experiments), starting with ML research and engineering and later other sciences. Alphabet is an investor, and by mid-September it was reportedly in talks at a ~$50B valuation.

## Key facts
- Founders: Jeff Dean (CEO per TechCrunch), Sanjay Ghemawat, Oriol Vinyals (Gemini co-lead), Quoc Le (Google Brain founding member)
- Structure: Public Benefit Corporation; mission 'to automate machine learning, science, and engineering to accelerate discoveries and progress'
- Initial round co-led by Radical Ventures and Khosla Ventures, with Kleiner Perkins, Lightspeed and Doerr Capital; Alphabet also invested (TechCrunch); Pichai's memo called Google a founding investor and cloud partner
- TechCrunch: the founders are interested in recursive self-improvement (automating AI improvement without human iteration)
- Valuation (secondary, Business Insider via TFN, 14 Sep 2026): talks at ~$50B, weeks after a reported ~$10B; not confirmed by the company
- Announced the same day as Demis Hassabis stepping aside as Google DeepMind CEO

## What happened

Jeff Dean announced on X that he, Sanjay Ghemawat, Oriol Vinyals and Quoc Le were founding Discovery Loop. The four have worked together for 14 to 30 years. The company wants to automate the experimental loop of research, running far more experiments than humans could. It starts with machine-learning research and engineering, and press reports name hardware design, drug discovery and clean energy as later targets. Dean told TechCrunch: "You will get both a higher quantity and a higher quality of experiments, and that will lead to scientific breakthroughs."

## Why it matters

Some of the most senior people behind Google's infrastructure (MapReduce, Bigtable, TensorFlow) and its AI models (Gemini, seq2seq) left in a single move to build an automated-research lab. This happened in the middle of a DeepMind leadership shake-up, and it is a direct bet on automating AI research, a key step toward recursive self-improvement.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): 97 days after its cutoff
- Claude Opus 5.5 (training cutoff June 2026): 36 days after its cutoff
- Gemini 4 Hydrogen (training cutoff March 2026): 127 days after its cutoff
- Grok 4.7 (training cutoff May 2026): 66 days after its cutoff

## Sources

1. [Jeff Dean on X: Announcing Discovery Loop](https://x.com/JeffDean/status/2085034604172603724) (x.com, official)
2. [Discovery Loop website](https://www.discoveryloop.com/) (discoveryloop.com, official)
3. [TechCrunch: Jeff Dean and other top AI researchers are leaving Google to launch their own startup](https://techcrunch.com/2026/08/05/jeff-dean-and-other-top-ai-researchers-are-leaving-google-to-launch-their-own-startup/) (techcrunch.com, press)
4. [GeekWire: The startup idea that convinced Jeff Dean to leave Google after 27 years](https://www.geekwire.com/2026/the-startup-idea-that-convinced-a-uw-computer-science-legend-to-leave-google-after-27-years/) (geekwire.com, press)
5. [Quartz: Jeff Dean leaving Google after 27 years to co-found Discovery Loop](https://qz.com/jeff-dean-google-chief-scientist-discovery-loop-startup-080526) (qz.com, press)
6. [Reuters (via TradingView): Discovery Loop seeks around $50 billion valuation, Business Insider reports](https://www.tradingview.com/news/reuters.com,2026:newsml_L6N453178:0-ai-startup-discovery-loop-seeks-around-50-billion-valuation-business-insider-reports/) (tradingview.com, press)
7. [Tech Funding News: Discovery Loop targets $50B valuation (citing Business Insider)](https://techfundingnews.com/ex-google-chief-scientist-jeff-dean-targets-50b-valuation-for-new-ai-startup-discovery-loop/) (techfundingnews.com, press)

## Changes

- 2026-10-03: Added Reuters' relay of the Business Insider ~$50B valuation report; no close announced as of Oct 3
- 2026-09-29 (filed): Created

## Related

- 2026-08-05: [Demis Hassabis steps aside as Google DeepMind CEO](https://postcutoff.com/e/2026-08-05-hassabis-steps-aside-deepmind/index.md)
- People: [Demis Hassabis](https://postcutoff.com/person/demis-hassabis/), [Sundar Pichai](https://postcutoff.com/person/sundar-pichai/), [Jeff Dean](https://postcutoff.com/person/jeff-dean/), [Oriol Vinyals](https://postcutoff.com/person/oriol-vinyals/), [Quoc Le](https://postcutoff.com/person/quoc-le/), [Sanjay Ghemawat](https://postcutoff.com/person/sanjay-ghemawat/), [Vinod Khosla](https://postcutoff.com/person/vinod-khosla/)
- Archived: 1 post, listed in https://postcutoff.com/e/2026-08-05-discovery-loop-founded/index.json