GPT-5-Codex: First Reactions

"An AI that can code for 7 hours straight" — VentureBeat's headline on gpt-5-codex. OpenAI released GPT-5-Codex in mid-September 2025. Since then, developers have reported meaningful productivity gains alongside some notable quirks. Here's what the community has been learning about

Promptmonitor: Product Review

AI tools now serve more than 1 billion monthly users, and 63% of websites report AI-driven search traffic. Those AI-referred visitors convert at 2.3× the rate of traditional organic search visitors, making AI discovery a channel AI teams and developers can no longer ignore.  AI assistants synthesize

What Is a Good R-Squared Value?

The coefficient of determination (R²) is one of the most commonly reported statistics in regression and model evaluation, yet it is still easy to misread. This guide explains in plain English what R² actually measures, why a “good” value is entirely contextual, how field-specific benchmarks can differ, and how

ROC and Shape: The Guide for ML Engineers

Since World War II, scientists have used a graph called a ROC plot to measure how well systems make yes-or-no decisions. Back then, it helped radar operators distinguish aircraft from noise. Today, it helps AI systems evaluate tasks like disease diagnosis. Most people know that these systems get

Claude AI Pricing: Choosing the Right Model

As Claude has matured into a major competitor in the AI landscape, and Claude Sonnet introduced its groundbreaking 1-million-token context window with updated pricing, it has become clear that understanding Claude's costs is crucial for anyone evaluating this AI assistant. This guide breaks down what you

Claude Prompt Generator

Anthropic's Prompt Playground, which helps developers generate and evaluate prompts for its AI assistant Claude, was spotlighted by TechCrunch in July 2024 as a notable development for teams building Claude-powered apps. that auto-generates and evaluates prompts for their AI assistant Claude. Meanwhile, "prompt engineering"

The first platform built for prompt engineering