LaunchAI ModelsJune 27, 2026
OpenAI launches GPT-5.6 Sol, Terra, Luna

OpenAI publicly launches GPT-5.6 Sol, a next-generation frontier model, along with Terra and Luna. Sol is priced the same as GPT-5.5, while Terra offers 5.5-level performance at half the price. Early testers report Sol is a significant step forward in coding, science, and cybersecurity.
15 sources
Previewing GPT-5.6 Sol: a next-generation modelopenai.com
RT @mweinbach: I had a pretty similar experience A bunch of my tweets about missing Fable were...x.com
OpenAI to publicly release GPT-5.6 AI models, ending government-requested limitscnbc.com
OpenAI to Roll Out Top AI Model Globally After Limited Previewbloomberg.com
[AINews] The Field Guide to Fablelatent.space
OpenAI Previews GPT-5.6 Sol With Restricted Access and Stronger Cyber Safeguardsthehackernews.com
Quoting OpenAIsimonwillison.net
My big takeaway as an early tester of both is that Sol & Fable represent jumps over previous models...bsky.app
OpenAI unveils GPT-5.6 Sol, Terra and Luna models — but only accessible to limited preview partners for now, per US Govventurebeat.com
What Is GPT-5.6? OpenAI's Soul, Terra, and Luna Model Tiers Explainedmindstudio.ai