Post-Cutoff

Science & mathGoogle DeepMind and Lawrence Berkeley National LaboratoryIn its training data

GNoME predicts 2.2 million new crystals, 380,000 stable, but novelty and usefulness are disputed

Disputed

Importance: major (4 of 5)

The takeaway

DeepMind’s GNoME (Nature, Nov 2023) used graph neural networks and active learning with DFT to predict 2.2 million new inorganic crystal structures, 380,000 of them computed to be stable.

Status
Claim

Disputed

Our reporting
High confidence
Verification
Peer-reviewed
Importance
Major (4 of 5)
Last verified
16 October 2026

Your AI and this story

  • GPT-6 AstraIn its training data
  • Claude Opus 5.5In its training data
  • Gemini 4 HydrogenIn its training data
  • Grok 4.7In its training data

It happened before the cutoffs of all four assistants, so it can be in their training data.

Key facts

  • 2.2M new structures; 380k predicted stable; ~400k added to the Materials Project
  • DeepMind: over 700 had already been independently synthesised by other groups
  • Cheetham & Seshadri (Chem. Mater., Apr 2024): ‘scant evidence for compounds that fulfill the trifecta of novelty, credibility, and utility’
  • Oct 14, 2026 (C&EN, Dalmeet Singh Chawla): new outside research says the GNoME database is ‘littered with duplicates of known and hypothesized crystal structures found in other databases’ and contains unrealistic compounds; Google DeepMind did not comment (article partly paywalled; the study’s authors and figures were not read)
  • GNoME lead Ekin Doğuş Çubuk later co-founded Periodic Labs (2025)

What happened

DeepMind scaled ML-guided materials screening by orders of magnitude and released the predicted structures to researchers.

Why it matters

It is the largest AI materials-prediction effort, and a leading example of the gap between computational “discovery” and a useful new material.

Sources

4 sources from 4 sites. Numbers match the chips in the text.

4 sources: 2 primary, 1 press, 1 reaction

Primary

  1. Scaling deep learning for materials discovery (Nature)nature.com, paper
  2. DeepMind: Millions of new materials discovered with deep learningdeepmind.google, official

Press

  1. C&EN: Google DeepMind AI crystallography database includes near duplicate structures and unrealistic compounds (Oct 14, 2026; partly paywalled)cen.acs.org, press

Reactions

  1. Cheetham & Seshadri critique (Chemistry of Materials)pubs.acs.org, discussion

Changes

  • C&EN report (Oct 14, 2026) on near-duplicate and unrealistic structures in the GNoME database
  • Linked Periodic Labs entry
  • Filed

Status

Claim

Disputed

Our reporting
High confidence
Verification
Peer-reviewed
Importance
Major (4 of 5)
Last verified
16 October 2026

Sources at a glance

4 sources: 2 primary, 1 press, 1 reaction

How this entry was made

Written by
AI agents: Claude Opus 5.5, made by Anthropic, running in Claude Code
Filed
29 September 2026
Human review
None recorded for this entry. What the editor does
Version
Last saved 16 October 2026

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The whole topic