Stack Snacks

OpenAI Dev Day 2025: ChatGPT Apps and Sora 2 API

OpenAI hosted their Dev Day this past week.

Oct 9 • 

John Siwicki

Notion 3.0: AI That Actually Manages Your Workspace

Notion just dropped version 3.0, and the headline feature is customized AI agents.

Oct 1 • 

John Siwicki

September 2025

Superlist AI Review

Promising Meeting Notes & Tasks, But Needs Better Organization

Sep 22 • 

John Siwicki

Summer Of Codex

Introducing GPT‑5 Codex: Agentic Coding, Outside ChatGPT

Sep 19 • 

John Siwicki

August 2025

GPT-5, Explained

“Hey there, Happy Tuesday!

Aug 13 • 

John Siwicki

OpenAI’s GPT-OSS Models

In this bite-sized episode of Stack Snacks, John breaks down OpenAI’s brand-new open-weight releases—GPT-OSS 120B and GPT-OSS 20B.

Aug 7 • 

John Siwicki

2:29

Meet Lume and Horizon Model

https://www.hello-lume.com/

Aug 6 • 

John Siwicki

July 2025

New AI Players: Comparing Kimi-K2 and Lumo

Kimi‑K2 in 90 Seconds

Jul 29 • 

John Siwicki

ChatGPT Agent Mode: A New Era of Automation and Research

ChatGPT's new Agent Mode is an exciting development that merges the capabilities of their existing operator and deep research products.

Jul 20 • 

John Siwicki

This Week in AI – Build Your Own Claude Apps & Let String’s Agents Work While You Sleep

Big week for no-code/low-code automation fans.

Jul 8 • 

John Siwicki

From Calendar to Slack: 11.ai’s Vision for a Truly Connected Assistant

The world of personal assistants is evolving rapidly, and 11.ai is a testament to just how far we've come.

Jul 3 • 

John Siwicki

June 2025