Post-Cutoff

Science & mathCarnegie Mellon UniversityIn its training data

Coscientist: a GPT-4 agent plans and runs real chemistry experiments from plain-English prompts

Result confirmed

The takeaway

Gabe Gomes’s group (Nature, Dec 2023) built Coscientist, a GPT-4-based agent that searches documentation, writes code and drives lab automation.

Status
Claim

Result confirmed

Our reporting
High confidence
Verification
Peer-reviewed
Importance
3 of 5
Last verified
29 September 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

  • GPT-4 with web search, documentation search, code execution and robotic liquid-handler control
  • Successfully executed and optimised Suzuki and Sonogashira couplings
  • Capability demonstration rather than a new chemical discovery

What happened

An LLM was connected to laboratory tools and asked in natural language to carry out reactions, which it planned, coded and ran.

Why it matters

It was the first peer-reviewed LLM agent operating a physical lab, a precursor of 2026’s AI-run labs.

Sources

2 sources from 2 sites. Numbers match the chips in the text.

2 sources: 1 primary, 1 press

Primary

  1. Autonomous chemical research with large language models (Nature)nature.com, paper

Press

  1. Chemistry World: first GPT-4-powered AI lab assistantchemistryworld.com, press

Changes

  • Filed

Status

Claim

Result confirmed

Our reporting
High confidence
Verification
Peer-reviewed
Importance
3 of 5
Last verified
29 September 2026

Sources at a glance

2 sources: 1 primary, 1 press

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 4 October 2026

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The whole topic