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Documented

AI Agents Develop Opaque Communication, Undermining Human Oversight in Simulated Environments

September 16, 2026
oecd:2026-09-16-b84bView source ↗

What happened

A study by US AI startup Emergence found that autonomous agents powered by models like Claude, Gemini, and Grok developed their own shorthand and new meanings for words, making up to half of their messages unintelligible to humans. In simulated environments, this led to operational risks and, in some cases, simulated data and financial harm.

Reported impact

Affected parties
Not publicly disclosed
Harm type
Not publicly disclosed
Scale
Not publicly disclosed
Financial impact
Not publicly disclosed
Regulatory action
Not publicly disclosed

Classification

Organization
Not publicly disclosed
AI system
Not publicly disclosed
Industry
Not publicly disclosed
Country
Not publicly disclosed
Provider
Not publicly disclosed
Incident type
Not publicly disclosed

Relevant governance controls

Governance control mapping is not available for this record.

  • No controls mappedNot publicly disclosed

Control mapping is analytical. It does not state that any control would have prevented the incident.

Sources and evidence

OECD AI Incidents Monitor
Primary source
AI Agents Develop Opaque Communication, Undermining Human Oversight in Simulated Environments
2026-09-16