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the claim

AI coding assistants generate package names that do not exist, a behavior called package hallucination.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that AI coding assistants generate package names that do not exist, a behavior called package hallucination?

Yes. One paper explicitly defines package hallucination as LLMs generating code that references or recommends packages that do not exist in any public repository, and a second source confirms AI coding assistants read package metadata. Together they support the claim that AI coding assistants generate nonexistent package names.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked

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Evidence for · 2
Importing Phantoms: Measuring LLM Package Hallucination Vulnerabilities
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Importing Phantoms: Measuring LLM Package Hallucination Vulnerabilities. (n.d.). arxiv.org. https://arxiv.org/html/2501.19012v1

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More for · 1
pkg-inject: Scanning npm and PyPI Packages for Prompt-Injection Payloads Targeting AI Coding Assistants
2026
Get citation
Anas, M. S. (2026). pkg-inject: Scanning npm and PyPI Packages for Prompt-Injection Payloads Targeting AI Coding Assistants. zenodo.org. https://doi.org/10.5281/zenodo.20502476

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