Anthropic says Claude designed binders for scorpion neurotoxins

Anthropic said on Oct. 20, 2026 that an internal Claude research model helped design protein minibinders against scorpion neurotoxins, with 17 of 211 lab-tested designs meeting the company’s binding criteria. The company said the work is a research demonstration rather than evidence of an antivenom, but argued it shows how AI could speed early-stage discovery for neglected diseases. In the research announcement, Anthropic said Claude worked from one initial prompt and four follow-up prompts over 64 hours, operating mainly autonomously within Claude Science, while the company’s life science team supervised the campaign. The system generated 318,484 protein designs, selected 180 for testing, and the team added 31 more with Claude’s help, bringing the total to 211 designs. Adaptyv Bio and Twist Bioscience tested the designs for binding.

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