Development

A virtual cell model learns biology in context

development2026-01-10

Claim

The Arc Institute unveiled Stack, a virtual cell foundation model trained on 149 million cells that simulates cellular responses to perturbations without fine-tuning.

Reported metric: 149M cells

Reporting date: 2026-01-10 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to January 10, 2026 (theinnermostloop.substack.com)

Few-shot learning arriving a second time, in wetware.

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About

Stack

Reported in

Welcome to January 10, 2026

Actor

Arc Institute

Evidence for

Supersedes

A universal cell-signaling model goes into construction

Referenced by

Cite or correct this record

Citation formatCitation text

A virtual cell model learns biology in context
Innermost Loop KB — secondary record
Reporting date: 2026-01-10
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2026-01-10-arc-stack-in-context-biology
Claim: The Arc Institute unveiled Stack, a virtual cell foundation model trained on 149 million cells that simulates cellular responses to perturbations without fine-tuning.
Attributed sources:
- Welcome to January 10, 2026 — https://theinnermostloop.substack.com/p/welcome-to-january-10-2026
This citation does not imply independent verification of linked-source claims.

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