OpenAI has officially released its GPT‑5.6 model family—Sol, Terra, and Luna—across ChatGPT, Codex, and the OpenAI API, marking a significant leap in enterprise AI capability. The launch, which received U.S. government approval, introduces ChatGPT Work, a powerful new agent built for complex, multi-step workflows across web, desktop, and mobile environments.(openai.com)
GPT‑5.6 Sol sets a new benchmark in reasoning and efficiency, outperforming competitors like Claude Fable 5 on long-horizon professional tasks while using fewer tokens and costing less. Terra and Luna offer balanced and cost-effective alternatives, respectively, delivering strong performance at lower price points. The model family also introduces an “ultra” mode for parallel multi-agent coordination, enhancing throughput for demanding tasks.(openai.com)
ChatGPT Work, powered by GPT‑5.6, transforms how enterprise users get work done. It can autonomously gather context from tools and files, plan multi-step workflows, and produce polished deliverables like spreadsheets, presentations, and web apps. It supports scheduled tasks, integrates with desktop and mobile environments, and includes oversight features like a Compliance API for enterprise governance.(openai.com)
The rollout began July 9, 2026, with availability across eligible paid plans (Plus, Pro, Business, Enterprise) and the API. Free and Go users are excluded. The phased deployment is ongoing, with full availability expected within 24 hours.(openai.com)
This launch signals a shift in enterprise AI—from reactive assistants to proactive collaborators capable of executing complex workflows. With GPT‑5.6’s enhanced reasoning, tool use, and cost efficiency, and ChatGPT Work’s agentic capabilities, OpenAI is positioning itself at the forefront of AI-driven productivity transformation in the enterprise.