---
id: "2023-11-29-a-lab-autonomous-synthesis-dispute"
url: "https://postcutoff.com/e/2023-11-29-a-lab-autonomous-synthesis-dispute/"
as_of: "2026-11-13T13:49:00+01:00"
date: "2023-11-29"
date_precision: day
category: science
importance: 3
confidence: high
status: [Disputed]
verification: Peer-reviewed
sources: 3
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/2023-11-29-a-lab-autonomous-synthesis-dispute/

# Berkeley's A-Lab claims 41 new materials from autonomous synthesis

Full title: Berkeley's A-Lab claims 41 new materials from autonomous synthesis; after critiques Nature corrects it to 36 'inorganic' (not 'novel') materials

Published alongside GNoME, the A-Lab paper (Nature, Nov 2023) claimed a robotic lab made 41 'novel' compounds from 58 targets in 17 days. Robert Palgrave and Leslie Schoop argued that many were known compounds or ordered versions of known disordered phases, and that the diffraction analysis was flawed. In Jan 2026 Nature published a correction: the title changed from 'novel materials' to 'inorganic materials' and the headline became 36 compounds from 57 targets.

## Key facts
- Original claim: 41 of 58 targets made in 17 days of autonomous operation (71%)
- Palgrave: 'it's likely they didn't make any discoveries'
- Jan 2026 Author Correction: 36 compounds from 57 targets; manual re-analysis confirmed 36 of 40 reported successes
- Palgrave said the authors 'didn't really engage' with the disorder issue

## What happened

A self-driving lab combined robotic synthesis with ML-based analysis. Independent chemists challenged whether its products were new, and the paper was eventually corrected.

## Why it matters

It is the clearest case study of overclaiming in AI-driven science, and of how human expert scrutiny corrected it.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): in its training data
- Claude Opus 5.5 (training cutoff June 2026): in its training data
- Gemini 4 Hydrogen (training cutoff March 2026): in its training data
- Grok 4.7 (training cutoff May 2026): in its training data

## Sources

1. [Nature: A-Lab Author Correction (2026)](https://www.nature.com/articles/s41586-025-09992-y) (nature.com, paper)
2. [C&EN: Nature robot chemist paper corrected](https://cen.acs.org/research-integrity/Nature-robot-chemist-paper-corrected/104/web/2026/01) (cen.acs.org, press)
3. [Chemistry World: New analysis raises doubts over autonomous lab's materials discoveries](https://www.chemistryworld.com/news/new-analysis-raises-doubts-over-autonomous-labs-materials-discoveries/4018791.article) (chemistryworld.com, discussion)

## Changes

- 2026-09-29 (filed): Created

## Related

- 2023-11-29: [GNoME predicts 2.2 million new crystals, 380,000 stable, but novelty and usefulness are disputed](https://postcutoff.com/e/2023-11-29-gnome-millions-of-materials/index.md)