# How Nubank uses causality, machine learning and Python to support credit limit increase decisions

DevFeed: [How Nubank uses causality, machine learning and Python to support credit limit increase decisions](<https://devfeed.tech/articles/how-nubank-uses-causality-machine-learning-and-python-to-support-credit-limit-increase-decisions-38849.md>)

Original publisher: [Read original article](<https://building.nubank.com/how-nubank-uses-causality-machine-learning-and-python-to-support-credit-limit-increase-decisions/>)

Author: Nubank Editorial

Published: 2026-07-01T16:16:31Z

Content type: article

Language: en

Sources: [Nubank](<https://devfeed.tech/sources/nubank.md>)

Topics: [Data Science](<https://devfeed.tech/topics/data-science.md>), [Machine Learning & Artificial Intelligence](<https://devfeed.tech/topics/machine-learning-artificial-intelligence.md>), [Python](<https://devfeed.tech/topics/python.md>), [risk-management](<https://devfeed.tech/topics/risk-management.md>), [Monitoring](<https://devfeed.tech/topics/monitoring.md>), [Optimization](<https://devfeed.tech/topics/optimization.md>)

Tags: [causality](<https://devfeed.tech/tags/causality.md>), [data-science](<https://devfeed.tech/tags/data-science.md>), [life-at-nu](<https://devfeed.tech/tags/life-at-nu.md>), [machine-learning](<https://devfeed.tech/tags/machine-learning.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [python](<https://devfeed.tech/tags/python.md>), [risk](<https://devfeed.tech/tags/risk.md>), [scalability](<https://devfeed.tech/tags/scalability.md>)

## AI overview

A high-level technical overview of how Nubank applies data science, predictive modeling, causality, optimization, and monitoring to support credit limit increase decisions. It discusses balancing customer experience, risk management, operational sustainability, interpretability, computational cost, and scalability.

## Source excerpt

A technical, high-level view of how data science helps build more responsible and scalable credit decisions The post How Nubank uses causality, machine learning and Python to support credit limit increase decisions appeared first on Building Nubank.