Chat with all AIGPT-6.1 Terra
GPT-6.1 Terra is the balanced GPT-6.1 model: noticeably deeper than Luna while still quick. It's a strong everyday workhorse for writing, analysis and code that needs more than a one-line answer.
Made byOpenAI
GroupComplex work
SpeedFast
In ProUnlimited*
fair use
fair use
Best for
- Drafting longer emails and documents
- Analyzing a page or report
- Writing and refactoring code
- Planning and outlining
Strengths
- Good balance of speed and depth
- Clear reasoning you can follow
- Handles multi-part instructions
- Consistent formatting for documents
Things to keep in mind
- For the hardest reasoning pick Sol or a max-tier model
- Can over-structure casual answers — ask for prose if you prefer
- No browsing: share the page with 'This page' instead
Prompts to try
Draft a project update email from these bullet points, 150 words.
Review this function for edge cases and suggest tests.
Compare the two options on this page in a pros/cons table.
Other GPT-6.1 models
Frequently asked questions
Is GPT-6.1 Terra free to try?
Yes. Your 3 free requests work with GPT-6.1 Terra. On Pro it's unlimited within fair use.
What is GPT-6.1 Terra best at?
Drafting longer emails and documents, analyzing a page or report, writing and refactoring code.
Does GPT-6.1 Terra browse the web here?
No. In Chat with all AI models don't run live web searches. Share the page you're on with This page to ground the answer.
Every top AI model, one side panel
Try GPT-6.1, Claude, Muse and Grok free — 3 requests, no card needed.