Introduction OpenAI has released the much anticipated GPT-5 model. Many technical background details are in the System card. It comes in five flavors: nano, mini, chat, what I call gpt-5 “proper” and GPT-5 Pro (also known as “gpt-5-thinking-pro). Some of these were beta-tested through the OpenRouter platform under the disguise of “Horizon Alpha”... Read more 15 Aug 2025 (Updated) - 8 minute read
Intro OpenAI has released the open-weights model that was announced end of March. It is a reasoning model that comes in two sizes: 20B and 120B, in a Mixture-of-Experts configuration. Model Card. Commenters call it “similar to o3” in performance, but that’s seems untrue - it’s about o3-mini grade, but lags behind o4-mini. Providers for quick... Read more 12 Aug 2025 (Updated) - 3 minute read
My Chatbot interface for OpenAI models (Live demo) has gotten a few improvements lately: Tool-Use presentation: Support for MCP Servers (aka “Model Context Protocol) registration to be done in mcp_registry.json, loosely follows the Visual Studio syntax sample in mcp_registry.sample.json M... Read more 07 Aug 2025 (Updated) - 1 minute read
ChatGPT Agent, an agentic environment within ChatGPT, has been rolled out to paid subscribers in the EEA and Switzerland (excluding Enterprise and Edu users). This combines the OpenAI Operator technology preview with Deep Research, a terminal tool for code execution and external data sources via Connectors. Operator will be deprecated in the com... Read more 01 Aug 2025 (Updated) - 5 minute read
Today, Armand Ruiz (VP of AI Platform at IBM) posted his thoughts on building an “AI-first company.” Among his points: culture beats models, small teams have outsized impact, and “Slack is the new org chart.” These ideas aren’t particularly new. Agile methodology emphasized similar values decades ago, and Jeff Bezos’ “two‑pizza” rule for team s... Read more 24 Jul 2025 - 3 minute read