# Claude found scorpion-toxin binders, not an antivenom

> Anthropic and Citrini say Claude produced 17 proteins that bound scorpion toxins. None has been shown to neutralize venom or work as a treatment.

Oossa · 2026-10-22 · https://oossa.com/en/claude-found-scorpion-toxin-binders-not-an-antivenom

Anthropic gave investment research firm Citrini access to an unreleased Claude model to explore scorpion antivenom design. In 64 hours, the model generated nearly 320,000 candidates; outside labs tested selected proteins, and 17 bound to toxins.

That is an early research result, not a medicine. The tests did not show that the proteins neutralize toxins, and experts said safety, stability and performance in the body remain unknown. Citrini’s experiment cost about $50,000 in computing, paid by Anthropic, plus roughly $150,000 for lab testing.

## The facts

- 17 designed proteins bound to four of the five toxins targeted; none bound to more than one toxin.
- The process took 64 hours; outside lab testing cost about $150,000.

## Why it matters

For people following AI drug discovery, this shows Claude can help identify molecules for testing, but whether those candidates can become safe, effective antivenom remains untested.

## Sources & references

1. [Claude did not invent scorpion antivenom](https://www.theverge.com/ai-artificial-intelligence/1016443/anthropic-claude-citrini-vibecoding-scorpion-antivenom) – The Verge, 2026-10-22

Last updated: 2026-10-22