Field notes
From the Saturn
Product updates, build logs and notes on growing software from a single prompt.
Three New Powerhouses. One Clean List.
GPT-5.6 Sol, GPT-5.6 Terra, and GPT-5.6 Luna — three next-generation models from OpenAI, seamlessly integrated into our minimalist picker. No clutter, no noise.
Read article →
Saturn Creative: design, draw, and build on one canvas
A studio inside Saturn — a Figma-grade drawing canvas, documents, presentations, a pro code editor, and photo tools that remove backgrounds or turn a picture into 3D.
Make games in Saturn — from one prompt or by hand
Describe a game and Saturn builds a real one — characters, sound effects, music, and a full game loop you can play right away. Or craft it object by object in Creative.
Generative UI: interfaces that build themselves
Describe an interface and watch Saturn render it live — cards, forms, dashboards, and controls that actually work, styled in Saturn's own look.
Ship to the App Store and Google Play — and send it to your phone
A polished submit flow for both stores, a Releases hub that tracks every build, and a QR code to install your app on your own device in seconds.
Every model, one clean list
Claude Sonnet 4.6, Opus 4.8, Sonnet 5, Fable 5, GPT-5.4, and GPT-5.5 — a simple picker with no clutter. Sprout runs on Auto; Pine, Oak, and Redwood choose.
A database you can actually edit — and receipts that land in your inbox
Saturn DB is now a real spreadsheet: add, edit and delete rows inline. Plus downloadable PDF receipts and a purchase email.
Saturn for developers: one key, apps everywhere
Create a workspace API key and Saturn plugs into your stack — build from Cursor via MCP, embed the builder in your product, or ship from a Slack command.
Auto-routing: Saturn picks the right model for every message
New projects default to Auto — quick answers stay fast, deep builds get the heavier model. You never choose.
Saturn Cloud: backend, auth and hosting from one prompt
A built-in database, session auth and publishing — no separate dashboard to wire up.
Visual edits: change the UI without spending credits
Click any element in the preview, tweak its text and colors live, and save instantly.
Why we built mobile-first when everyone else chose web
Most builders open Saturn on a laptop. We still designed the core loop for a phone. Here's why.
Gallery & Remix: learn from what the community grows
Browse real projects, open one, and remix it into your own workspace in a click.
Branching: explore three directions, keep the best
Fork any version into parallel branches, compare them side by side, then merge what works.
Notes from the Saturn, in your inbox.
One short email when we ship something worth knowing about. No noise.
Subscribe