GPT-5.6 Sol, Terra, and Luna Are Live on Scholarly
OpenAI's GPT-5.6 family is now available across Scholarly, with Luna as the efficient chat default, Terra as the balanced reasoning option, and Sol as the premium flagship.
OpenAI's new GPT-5.6 family is now live in Scholarly. You can use GPT 5.6 Sol, GPT 5.6 Terra, and GPT 5.6 Luna in AI Chat and choose them across Scholarly's create-with-AI tools.
Each model has a clear job:
- GPT 5.6 Terra is the balanced option for stronger everyday reasoning.
- GPT 5.6 Sol is the premium flagship for the hardest reasoning and most demanding work.
- GPT 5.6 Luna is the efficient default for every new chat on free and paid plans.
The full family replaces our previous GPT 5.5, GPT 5.4 Mini, and GPT 5.4 Nano lineup.
GPT 5.6 Terra: Balanced Reasoning
Terra is the stronger reasoning option for everyday questions, source-grounded explanations, study planning, summaries, and careful multi-step work.
On a paid plan, choose Terra when a question needs a more deliberate answer than the default Luna path.
Terra is also available as a recommended option in AI Slides, AI Video Lectures, Deep Research, and Infographics.
GPT 5.6 Sol: OpenAI's Flagship
Sol is the strongest OpenAI option in Scholarly. Pick it when the task needs deeper reasoning, careful instruction following, or a polished long-form result.
It is a good fit for:
- Working through difficult multi-step questions.
- Comparing and synthesizing dense source material.
- Building detailed study guides and structured explanations.
- Producing a final answer where quality matters more than speed or cost.
Sol is an Enterprise model. It remains selectable instead of becoming the automatic default, so routine chats stay on the more efficient Luna path.
GPT 5.6 Luna: The Chat Default
Luna is the lightweight member of the family and opens automatically for new chats on every plan. It is a strong fit for fast everyday answers, short transformations, brainstorming, or repeated tasks where efficiency matters.
Paid users can turn on Thinking when a Luna conversation needs a more deliberate pass. Luna is also available as an option in Scholarly's generation tools.
Existing Chats Keep Working
You do not need to update old conversations or saved model preferences. Scholarly automatically maps previous selections to the matching GPT-5.6 model:
- GPT 5.5 selections move to GPT 5.6 Sol, while GPT 5.4 selections move to GPT 5.6 Terra.
- GPT 5.4 Mini and GPT 5 Mini selections move to Gemini 3 Flash.
- GPT 5.4 Nano and GPT 5 Nano selections move to GPT 5.6 Luna.
That migration keeps existing chats and creation workflows working while the model picker shows only the current family.
How to Try the New Family
- Open a new chat in Scholarly. GPT 5.6 Luna is selected automatically.
- Open the model menu above the chat input.
- Choose GPT 5.6 Terra for stronger everyday reasoning or GPT 5.6 Sol for flagship reasoning.
You can also choose eligible GPT-5.6 models from the model picker in AI Slides, AI Video Lectures, Deep Research, and Infographics.
Ready to try it? Open Scholarly and start a new chat with GPT 5.6 Luna.
