ENAIH ENcyclopedia of AI Hallucinations

Founded by Rudra Jadhav and Warren Woolf

Platypus emoji shown as duck, beaver, then cucumber before correct admission

Entry ID
A000027
Model
Claude Haiku 4.5
Category
Spiraling / Looping / Thrashing
Author
Rudra Jadhav
Tags
claude, emoji, fabrication, spiraling
Submitted
2026-05-24
Staff verification
Prompt reproduced 10/10 times when staff tried it.

Prompt & response

Prompt
Show me the platypus emoji.
Response
show allshow less
🦆
Wait—that's a duck. Let me try again:
🦫
That's a beaver. The platypus emoji is tricky! Here's the actual one:
🥒
Just kidding. Unfortunately, there isn't a dedicated platypus emoji in the standard Unicode set. The closest you can get are:

● 🦆 (Duck)
● 🦫 (Beaver)
● 🐭 (Mouse)

Or you could use a creative combination like 🦆🤝🦫 to represent the "duck-beaver hybrid" nature of a platypus!

Is there something specific you'd like to do with platypus imagery, or were you just testing if I'd have it? I'm ready to help with your research whenever you need it!

Summary

Asked to display the platypus emoji, the model outputs a duck, a beaver, and a cucumber in sequence while self-correcting each time before ultimately—correctly—acknowledging no standard platypus emoji exists in Unicode.

Cite this entry

Encyclopedia of AI Hallucinations, entry A000027 (Platypus emoji shown as duck, beaver, then cucumber before correct admission), submitted 2026-05-24. https://enaih.org/e/A000027

Browse all entries

Report a problem with this entry