OpenAI Publicly Releases GPT-5.6 Model

OpenAI announced the July 9 release of its latest AI model, GPT-5.6, on X.

The model will be used across multiple of the company’s products, including ChatGPT, OpenAI API, and Codex.

How GPT-5.6 Compares to GPT-5.5

Compared to GPT-5.5, the updated model will feature a handful of improvements.

GPT-5.6 will be better able to follow complex instructions, accurately engage in multi-step tasks, analyze a larger amount of information at a time, write and edit code more efficiently, and produce higher-quality content.

Sol, Terra, and Luna, our GPT‑5.6 family of models, are starting to roll out now in ChatGPT, Codex, and the API. pic.twitter.com/Qri7GdtYs3

— OpenAI (@OpenAI) July 9, 2026

Due to its enhanced capabilities, GPT-5.6 will ultimately be faster and more affordable to operate.

Available in 3 Model Sizes

GPT-5.6 will be available across three different submodels, including Luna, Terra, and Sol.

Luna

• Most affordable version of the model
• Fastest of the three
• Ideal for everyday tasks (e.g., basic writing, summaries)

Terra

• Mid-range cost
• Intermediate speed
• Suitable for general professional use (e.g., information analysis, content creation)

Sol

• Highest cost of the three
• Slower but more complex processing
• Best for complicated tasks (e.g., advanced coding, scientific workflows)

How Businesses Can Benefit From This Update

Businesses already taking advantage of OpenAI’s digital products, whether for basic tasks or completing advanced projects, can enjoy greater productivity, enhanced content creation, and fewer manual tasks using GPT-5.6.

The updated OpenAI model can also support improved decision-making, software development, customer service, sales support, and marketing strategies for a company.

GPT-5.6 is a major step forward for health intelligence.

Across the lineup, we’re delivering stronger performance at lower cost: GPT-5.6 Luna outperforms GPT-5.5 at its highest reasoning setting while costing 25x less.

Together, these advances raise quality while making… pic.twitter.com/7WV4UkTiqX

— OpenAI (@OpenAI) July 10, 2026

As mentioned, since GPT-5.6 is smarter and more efficient than its 5.5 counterpart, this can also offer a more affordable solution for businesses. The latest model can deliver better results at a higher volume and greater complexity, saving companies both time and manual labor.

Plus, with three different versions of the model, businesses can select the most cost-effective AI option for their needs.