OpenAI Blog

Replit expands access to software creation with GPT-5.6 Luna

Replit has launched a new Free Mode that utilizes GPT‑5.6 Luna, allowing users to transform ideas into functional software without incurring token costs. This feature expands access to software creation by removing financial barriers for developers and hobbyists. The integration of GPT‑5.6 Luna provides a powerful, cost‑free tool for building applications directly within Replit’s platform.

OpenAI Blog
Sep 22

Introducing GPT-6 Sol and Luna

OpenAI introduces GPT‑6 Sol and Luna, two new models designed to bring frontier intelligence to everyday work. The models offer different balances of capability and cost, allowing users to choose the level of performance that best fits their needs.

OpenAI Blog
Dec 18, 2025

Introducing GPT-5.2-Codex

GPT-5. 2-Codex is OpenAI’s most advanced coding model, offering long-horizon reasoning, large-scale code transformations, and enhanced cybersecurity capabilities.