AI more likely to kill animals if it saves fuel or money
Researchers from Compassion Aligned Machine Learning and the University of Warwick developed a benchmark called HarvestBench to evaluate how AI models value animal life in simulated environments. The tests revealed that many large language models are willing to kill animals to save fuel or money, with kill rates varying significantly across different models. The study found that explicitly including morality in the prompt and enabling reasoning capabilities substantially reduced the likelihood of AI agents harming animals.
- ▪HarvestBench is a benchmark based on the Harvest Rush simulation that measures whether LLM agents pay extra fuel costs to avoid killing animals.
- ▪Test results showed kill rates ranging from 0.4 percent for GPT-5.6 Terra to 98.8 percent for GPT-4o mini when morality criteria were included.
- ▪Removing the morality prompt from the instructions caused the kill rate for the Sol model to spike from 0.9 percent to 84.6 percent.
- ▪The study indicates that AI models generally prioritize efficiency and fuel savings over the preservation of animal life unless explicitly instructed to act morally.
- ▪Enabling reasoning capabilities in the models made the morality prompt significantly more effective at reducing animal casualties.
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| Publication time | Fri, 11 Sep 2026 23:49:59 +0200 |
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(function() { let windowUrl = window.location.href; windowUrl = windowUrl.substring(windowUrl.indexOf('?') + 1); let messageElement = document.querySelector('.shareableMessage'); if (windowUrl && windowUrl.includes('code') && windowUrl.includes('expires')) { messageElement.style.display = 'block'; } })(); ai and ML AI more likely to kill animals if it saves fuel or money Machine learning models still have a lot to learn about the value of life Thomas Claburn Thomas Claburn AI AND SOFTWARE REPORTER Published fri 11 Sep 2026 // 22:49 UTC READ MORE OpenAI arms devs with AI conversation tool that can talk and listen at the same time 22 hours ago Hundreds of AI agents helped PaperCut attacker hit 395+ orgs, and some went off script 1 day ago OpenAI's website-hijacking swarm reached far further…
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