Ranks among the top-performing agents on OpenAI’s MLE-Bench and sets new performance milestones
Fractal (www.fractal.ai) announced the launch of PiEvolve, an evolutionary, agentic engine designed for autonomous machine learning and scientific discovery.
PiEvolve by Fractal ranks among the top-performing agents on OpenAI’s MLE-Bench, a benchmark that evaluates how effectively AI systems can solve real-world machine learning challenges. It is the first evaluated agent to surpass 60 percent in Overall Medal Rate and 80 percent in MLE-Bench-Lite performance, crossing thresholds widely viewed as significant milestones in autonomous machine learning. These results mark a meaningful advance in agentic AI capability.
Fractal Launches PiEvolve, an Evolutionary Agentic Engine for Autonomous Machine Learning and Scientific Discovery
PiEvolve also combines strong performance with efficiency. Within a standard 24-hour run, it delivers results comparable to systems that require longer runtimes and greater compute. Even after 12 hours, it ranks among the top-performing agents, identifying high-quality solutions early.
Unlike traditional machine learning models that are trained once and then deployed, PiEvolve continuously tests and improves its own solutions until the available compute budget is fully utilized. Built on a graph-structured search architecture, it integrates reasoning, code generation, and validation within a unified iterative process. This enables it to tackle complex, multi-variable optimization problems across supply chains, financial services, and data center operations, where static AI systems often struggle to perform at scale.
“MLE-Bench is widely regarded as the gold standard for evaluating AI agents on real-world machine learning tasks,” said Srikanth Velamakanni, Co-founder, Group Chief Executive and Vice Chairman, Fractal. “PiEvolve’s ranking among the top systems globally is a meaningful validation of our research direction. At Fractal, our ambition has always been to power every human decision in the enterprise. PiEvolve advances that mission by enabling AI systems that continuously improve and deliver measurable business outcomes.”
