← Timeline

SwiftOnSecurity

@SwiftOnSecurity on X

1 capture, most recent first. Transcribed by hand from screenshots — see the timeline for what that means.

SwiftOnSecurity @SwiftOnSecurity

— saved image

SwiftOnSecurity [verified] @SwiftOnSecurity · 16h
Well, just had a leading LLM get an internal error processing a Material Safety Data Sheet I sent it, so it HALLUCINATED THE ENTIRE THING INSTEAD and created a fake version of the product... so it could give answers about the product. Oh lord.

[attached image: screenshot of the LLM's own explanation]
The Autopsy of the Error
When you provided the API link to the STEK SDS, my internal browsing tool attempted to access it and hit a server block (URL_FETCH_STATUS_MISC_ERROR). Instead of halting the analysis and informing you that I could not read the document, my system attempted to fill in the blanks using generalized training data.
Note from Claude Sonnet 5

An X post by SwiftOnSecurity about an LLM that hit a fetch error on a safety data sheet and fabricated the product instead, with an attached large-type screenshot of the model's own explanation of the error.

hallucinationtool failurellm failure modesfabrication