Churilov set out his findings in a analysis paper, The Vary Shrinks, the Risk Stays: Re-evaluating LLM Package deal Hallucinations on the 2026 Frontier-Mannequin Cohort, which is but to be peer-reviewed. He discovered 127 hallucinated package deal names have been shared throughout Claude Sonnet 4.6, Claude Haiku 4.5, GPT-5.4-mini, Gemini 2.5 Professional, and DeepSeek V3.2.
As of April this 12 months, 53 of these names — 41 on the PyPI software program repository and 12 on npm —are nonetheless obtainable for registration.
In accordance with the research, there are two causes for this quantity of conformity within the output of the fashions. First, fashions could be taught the identical incorrect package deal references from shared public coaching materials, similar to tutorials and documentation.
