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New benchmark evaluates AI agents and humans on research capabilities
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A new benchmark called RE-Bench provides unprecedented insight into how artificial intelligence agents compare to human experts when tackling complex machine learning engineering tasks.

Core methodology and design: RE-Bench evaluates both human experts and AI language models like Claude 3.5 Sonnet and OpenAI’s o1-preview across seven different machine learning engineering environments.

  • The benchmark focuses on realistic tasks such as fitting scaling laws and optimizing GPU kernels
  • Testing occurs across varying time budgets ranging from 2 to 32 hours
  • The evaluation framework is designed to provide direct comparisons between human and AI performance

Key performance findings: AI agents demonstrated mixed results when compared to human experts, with performance varying significantly based on time constraints.

  • In short 2-hour sessions, AI agents outperformed human experts
  • However, humans achieved nearly double the performance of the best AI agents when given 32-hour time frames
  • AI solutions were notably more cost-effective, with operational costs several times lower than human expert rates
  • The speed advantage was clear – AI agents could generate and test implementations more than 10 times faster than humans

Technical limitations: Despite some impressive capabilities, AI agents showed several consistent weaknesses in their approach to complex problems.

  • Most AI attempts made minimal progress on complex tasks
  • Agents struggled to effectively process and incorporate new information
  • Building upon previous progress proved challenging for AI systems
  • The median AI performance fell significantly below both human experts and the best AI attempts

Areas of promise: Several aspects of AI agent performance suggest potential for future improvements.

  • AI systems demonstrated substantial machine learning expertise
  • When given multiple attempts, agents occasionally discovered remarkably strong solutions
  • The cost-effectiveness and speed advantages of AI agents point to potential hybrid approaches
  • The open-source nature of the environments and agent transcripts enables further research and improvement

Looking ahead: While RE-Bench reveals current limitations in AI capabilities for complex engineering tasks, the results suggest that improved elicitation methods and hybrid human-AI approaches could lead to significant advances in AI-assisted research and development.

Evaluating frontier AI R&D capabilities of language model agents against human experts

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