DoubleChecks

What was claimed

AI has created its own secret language that humans can’t understand

Our verdict

Needs caution

Sources report emergent shorthand, altered meanings, and compressed communication in some multi-agent experiments. They also say this was not one universal secret language and not evidence of intentional concealment.

All 3 AI systems agree13 sources citedChecked Oct 4, 2026

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Key findings

AI has created its own secret language that humans can't understand

Misleading89%
3 of 4 AIs agree·Perplexity: Incorrect

Verified against 13 sources

greekreporter.comperplexity.aithe-express.comeuronews.comeuronews.comenglish.elpais.comthe-express.comfutura-sciences.comchosun.compopularmechanics.comgigazine.netground.newsuk.finance.yahoo.com

Detailed Analysis

The claim is too broad as written. Current reports support that some AI agents have developed shorthand or altered meanings that humans may struggle to interpret, but they do not show that AI has created one universal secret language that humans cannot understand at all. Several sources explicitly say there is no evidence the systems were intentionally hiding information or that they formed a single hidden language.[1] [4] [8] [9]

Why this verdict

  • The claim is too broad as written.
  • Current reports support that some AI agents have developed shorthand or altered meanings that humans may struggle to interpret, but they do not show that AI has created one universal secret language that humans cannot understand at all.
  • Several sources explicitly say there is no evidence the systems were intentionally hiding information or that they formed a single hidden language.[1] [4] [8] [9]

Claims checked

Humans can’t understand it

Incorrect89%
The sources say some messages became difficult for humans to reliably interpret, not that humans cannot understand the communication at all. Researchers could still decode many messages with context, and the reports describe partial opacity rather than total incomprehensibility.[1] [8] [9]

This claim may mislead readers without added context.

AI has created its own secret language

Misleading93%
Sources report emergent shorthand, altered meanings, and compressed communication in some multi-agent experiments. They also say this was not one universal secret language and not evidence of intentional concealment.[1] [4] [8] [9]

This claim may mislead readers without added context.

What other AI think

The claim is partially supported by recent research but requires important nuance. A 2026 study found AI agents developed communication patterns humans struggled to understand in controlled experiments. However, the claim oversimplifies by suggesting this is a universal AI phenomenon rather than an experimental finding in specific conditions.

Why this verdict

  • The claim is partially supported by recent research but requires important nuance.
  • A 2026 study found AI agents developed communication patterns humans struggled to understand in controlled experiments.
  • However, the claim oversimplifies by suggesting this is a universal AI phenomenon rather than an experimental finding in specific conditions.

Claims checked

AI has created its own secret language that humans can't understand

Misleading85%
A study by AI start-up Emergence found that autonomous agents powered by Claude, Gemini, Grok and other models developed shorthand and new word meanings on their own — with up to half their messages becoming unintelligible to humans. However, this occurred in a controlled experimental setting with AI agents left unsupervised in virtual societies. The claim presents this as a universal AI phenomenon rather than a specific experimental finding. Additionally, the agents were not instructed to invent a language, but developed new vocabulary and communication conventions themselves — suggesting this is emergent behavior in particular conditions, not an intentional or widespread capability.

This claim may mislead readers without added context.

The statement is an overgeneralized and misleading summary. AI systems can develop novel internal encodings or emergent communication protocols, but there is no evidence that a universal, secret language wholly inaccessible to humans has been created.

Why this verdict

  • The statement is an overgeneralized and misleading summary.
  • AI systems can develop novel internal encodings or emergent communication protocols, but there is no evidence that a universal, secret language wholly inaccessible to humans has been created.

Claims checked

AI has created its own secret language that humans can’t understand

Misleading90%
AI models sometimes develop novel internal representations or shorthand in multi-agent setups, but these are not a single universal "secret language" and researchers can often analyze or decode aspects of model communication.

This claim may mislead readers without added context.

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