---
title: "Neu Portal (@neuportal) | Hashnode"
description: "Can AI Predict Prediction Markets? Polymarket, Kalshi & the Limits of Machine Forecasting. Read the latest articles by Neu Portal on Hashnode."
url: "https://hashnode.com/@neuportal"
---

@neuportal

# Neu Portal

@neuportal · Joined July 2026

Can AI Predict Prediction Markets? Polymarket, Kalshi & the Limits of Machine Forecasting

### [How to Tell Whether Your Forecasting Model Beats the Market: A Python Walkthrough](https://neuportal.hashnode.dev/how-to-tell-whether-your-forecasting-model-beats-the-market-a-python-walkthrough?utm_source=hashnode&utm_medium=feed)

Brier scores, the Murphy decomposition, a clustered bootstrap and a blending test, run on an open dataset of 5,654 timestamped model forecasts against Polymarket prices. If you build a probabilistic m

7 min read · [neuportal.hashnode.dev](https://neuportal.hashnode.dev/how-to-tell-whether-your-forecasting-model-beats-the-market-a-python-walkthrough?utm_source=hashnode&utm_medium=feed)

[1d ago](https://hashnode.com/posts/how-to-tell-whether-your-forecasting-model-beats-the-market-a-python-walkthrough/6af786fdc9c4a9fa707c8f6c)

### [7,426 forecasts against Polymarket: exactly where the market beat our models](https://neuportal.hashnode.dev/7-426-forecasts-against-polymarket-exactly-where-the-market-beat-our-models?utm_source=hashnode&utm_medium=feed)

Since September our statistical models have made 7,426 probability calls on Polymarket questions. Each call is stored next to the market price at the moment it was made, and the file holding it is tim

6 min read · [neuportal.hashnode.dev](https://neuportal.hashnode.dev/7-426-forecasts-against-polymarket-exactly-where-the-market-beat-our-models?utm_source=hashnode&utm_medium=feed)

[4d ago](https://hashnode.com/posts/7-426-forecasts-against-polymarket-exactly-where-the-market-beat-our-models/6af3789d55d6e7c72e4ae3b0)

### [Nobody Pays For The Prompt: What Turns An AI Demo Into A Billable System](https://neuportal.hashnode.dev/nobody-pays-for-the-prompt-what-turns-an-ai-demo-into-a-billable-system?utm_source=hashnode&utm_medium=feed)

A working chatbot demo and a support agent a company will pay a monthly invoice for are separated by operations, not by model quality. Here is the specific engineering that sits in that gap, and why your twentieth delivery is worth more than your first ten.

7 min read · [neuportal.hashnode.dev](https://neuportal.hashnode.dev/nobody-pays-for-the-prompt-what-turns-an-ai-demo-into-a-billable-system?utm_source=hashnode&utm_medium=feed)

[Aug 4](https://hashnode.com/posts/nobody-pays-for-the-prompt-what-turns-an-ai-demo-into-a-billable-system/6a71f86cac713a37299e45cf)

### [AI and Volatility: Forecasting How Much a Market Moves, Not Which Way](https://neuportal.hashnode.dev/ai-and-volatility-forecasting-how-much-a-market-moves-not-which-way?utm_source=hashnode&utm_medium=feed)

Ask almost any machine pointed at a market the same question and it will answer confidently: where is the price going next. It is the question with the screenshots and the viral threads, and it is the

8 min read · [neuportal.hashnode.dev](https://neuportal.hashnode.dev/ai-and-volatility-forecasting-how-much-a-market-moves-not-which-way?utm_source=hashnode&utm_medium=feed)

[Jul 24](https://hashnode.com/posts/ai-and-volatility-forecasting-how-much-a-market-moves-not-which-way/6a6366f6d57ef5e85c6267fd)

### [Calibration: the metric your ML dashboard is probably missing · tags: machinelearning, python, datascience](https://neuportal.hashnode.dev/calibration-the-metric-your-ml-dashboard-is-probably-missing-tags-machinelearning-python-datascience?utm_source=hashnode&utm_medium=feed)

Most ML dashboards show accuracy. For any model that outputs probabilities, accuracy hides the thing that matters: is a "70%" really a 70%? That's calibration — of all the times a model said 70%, do ~

1 min read · [neuportal.hashnode.dev](https://neuportal.hashnode.dev/calibration-the-metric-your-ml-dashboard-is-probably-missing-tags-machinelearning-python-datascience?utm_source=hashnode&utm_medium=feed)

[Jul 17](https://hashnode.com/posts/calibration-the-metric-your-ml-dashboard-is-probably-missing-tags-machinelearning-python-datascience/6a5a92dc471060118eea5bee)