[P] AIBuildAI: An AI agent that automatically builds AI models (#1 on OpenAI MLE-Bench)

Reddit r/MachineLearning / 3/19/2026

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Key Points

AIBuildAI released an agentic system that automatically builds AI models, aiming to reduce manual work in model development.
It ranked #1 on OpenAI's MLE-Bench benchmark, demonstrating its leading automated model-building capability.
The system runs an agent loop that analyzes tasks, designs models, writes code, trains, tunes hyperparameters, evaluates performance, and iterates to improve the models.
The project is publicly available on GitHub, and the authors welcome questions and community feedback.

Hi everyone,

We recently released AIBuildAI, an agentic system that automatically builds AI models.
GitHub: https://github.com/aibuildai/AI-Build-AI

On OpenAI’s MLE-Bench benchmark, AIBuildAI ranked #1: https://github.com/openai/mle-bench

The system runs an agent loop that automatically:
• analyzes the task
• designs models
• writes code to implement them
• trains the models
• tunes hyperparameters
• evaluates model performance
• iteratively improves the models

The goal is to reduce the amount of manual work required to build AI models and automate much of the model development process.

Happy to answer questions and would love to hear feedback from the community.

submitted by /u/pengtaoxie
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