OpenAI Releases New GPT-5.6 in Limited Release

OpenAI is releasing three versions of GPT-5.6: Sol, Terra and Luna. Sol is the most powerful. Terra offers a balance of efficiency and power and Luna is designed for speed and affordability.

OpenAI will add options that allow for more reasoning as well as an "ultra" mode that splits work among multiple sub-agents.

GPT-5.6 is available as a limited preview to around 20 companies whose participation has been approved by the Trump administration. OpenAI says they expect to expand access to more companies next week.

Please select this link to read the complete article from Axios.