Fast
Claude Sonnet 5
Keep everyday work moving
For questions, writing and everyday organization. Fast-tier text chat is free.
AI models
Choose the intelligence your work needs.
Use Claude Sonnet 5, Opus 5 and Fable 5.1 in GNJ AI. Choose Fast, Pro or Ultra, then combine your model with files, skills and tools.
Pro
Claude Opus 5
Go deeper into the details
For research, documents and code that deserve a closer look. Keep refining in the same conversation.
Ultra
Claude Fable 5.1
Take on the ambitious work
A higher tier for ambitious, open-ended tasks with multiple steps and tools.
From brief to result
- 01
Start with the task. Fast is a useful starting point for questions and first drafts.
- 02
Choose Pro or Ultra for work that calls for deeper analysis, code or complex documents.
- 03
Add your files and requirements. Let the model use tools, then refine the result in the conversation.
What you can make
- Go from a response to a document, image or working app.
- Fast-tier text chat is free. Review other model and media usage in the app.
- Model tiers and subscription plans are distinct. Check credits and availability before choosing a plan.
A good place to start
Read this research report. Separate facts, assumptions and claims that need checking, then write a one-page summary.
Make your next great thing.
Bring a question, a file, or an idea that’s not quite there yet.