ChatGPT did not cure a dog’s cancer

AI Didn’t Cure This Dog’s Cancer — But the Story Took Off Anyway

When Australian tech entrepreneur Paul Conyngham’s Staffordshire bull terrier-shar pei mix Rosie was diagnosed with terminal cancer in 2024, the news was grim. Chemotherapy slowed the disease but failed to shrink the tumors. Veterinarians told Conyngham that nothing more could be done.

Instead of accepting the prognosis, Conyngham turned to an unconventional source: ChatGPT. The AI chatbot helped him brainstorm treatment options, pointing him toward immunotherapy and connecting him with researchers at the University of New South Wales. With their help, Conyngham used ChatGPT and Google DeepMind’s AlphaFold protein structure model to analyze genetic data from Rosie’s tumor.

The result was a personalized mRNA vaccine, developed in collaboration with UNSW professor Pall Thordarson. Thordarson told The Australian it may be the first time such a treatment has been created for a dog. A few weeks after Rosie’s first injection in December 2024, Conyngham reported that her tumors had shrunk and she was more active, even chasing rabbits again.

However, the tumors haven’t disappeared entirely, and one didn’t respond to the treatment at all. Conyngham himself acknowledged, “I’m under no illusion that this is a cure, but I do believe this treatment has bought Rosie significantly more time and quality of life.”

That nuance was quickly lost as the story spread across social media and news outlets. Newsweek ran the headline “Owner With No Medical Background Invents Cure for Dog’s Terminal Cancer,” while the New York Post declared that a “Tech pro saves his dying dog by using ChatGPT to code a custom cancer vaccine.” Tech leaders including OpenAI’s Greg Brockman, Google DeepMind’s Demis Hassabis, and Elon Musk amplified the story, with Musk specifically noting that xAI’s Grok also contributed to the vaccine design.

The viral narrative gives AI far more credit than it deserves. ChatGPT didn’t design or create Rosie’s treatment — human researchers did. At most, the chatbot served as a research assistant, helping Conyngham parse medical literature. The mRNA vaccine was developed by scientists, not generated by a chatbot.

Moreover, the treatment’s effectiveness remains uncertain. The personalized vaccine was administered alongside another form of immunotherapy called a checkpoint inhibitor, making it difficult to determine if the vaccine had any effect. Scientists are still testing to see if there was an immune response.

David Ascher, a professor at the University of Queensland, told The Verge that AlphaFold “could contribute structural hypotheses about proteins, but it is not a turnkey cancer-vaccine design system.” He also noted that AlphaFold’s official guidance warns it’s not validated for predicting the effects of some mutations and doesn’t model “several biologically important contexts.”

Grok’s role is even murkier. Conyngham claimed on X that “the final vaccine construct for Rose was designed by Grok,” but it’s unclear what this means in practice. Ascher said Grok would realistically fall into the same category as ChatGPT — a tool that could help with literature searches, summarizing papers, and suggesting workflows, but not actually designing a vaccine.

The “AI made this” framing ignores the massive human effort required to turn an AI’s output into real treatment. Alvin Chan, an assistant professor at Nanyang Technological University in Singapore, told The Verge that without expert labor, “AI’s output would have remained just text on a screen.”

Rosie’s case represents an unusual proof of possibility rather than a template ordinary people can readily reproduce. It required substantial expert labor, not just a chatbot and a few prompts. The story carries a faint whiff of a PR stunt, fitting neatly into the world of tech fundraising where bold claims built from questionable foundations using vague methods are common.

While AI may be making science more accessible to ordinary people, that’s not the same as making care more accessible. Few patients — or pet owners — have ready access to the world-class experts, specialized equipment, and substantial funds needed to turn information into real treatment.

The viral spread of this story reveals how eager we are to believe in AI’s miraculous capabilities, even when the reality is far more nuanced and collaborative. It’s a reminder that while AI can be a powerful tool in medical research, it’s still humans who do the hard work of turning possibilities into actual treatments.

Tags: AI, cancer, dog, mRNA vaccine, ChatGPT, AlphaFold, immunotherapy, personalized medicine, veterinary medicine, medical research, viral story, tech hype, OpenAI, xAI, Grok, Greg Brockman, Demis Hassabis, Elon Musk

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