01 / 04idle
Read the idea
Decompose into the parts worth thinking about.
Opus—
See Saturn plan a project in 30 seconds.
Every other AI builder hands you a blank canvas and a chat window. Saturn writes the plan first — read the idea, three angles in parallel, stress-test, compose — and ships you a PRD before you write a line.
Type an idea below. Watch it run. Read the PRD that comes out.
The plan, live
ready- 02 / 04idle
Three angles
Scope, audience, risks. Run in parallel.
Sonnet— - 03 / 04idle
Stress-test
Flag weaknesses, missing assumptions, scope creep.
Opus— - 04 / 04idle
Compose the PRD
Write the final PRD from what survived the critique.
Opus—
The PRD
Type an idea above and press Plan it. The PRD streams here as Saturn writes it.
This demo run is on us. After signup, you get 250K credits to plan your own.
Saturn ships the thinking, not just the code.
The conversational AI builders skip the part where the work gets scoped. You ship a chat log, then realize on day five you needed decisions you never made. Saturn writes the plan first — three angles in parallel, a stress-test pass for the gaps, then a composed PRD you can ship a build off of tomorrow morning.
FIG. — PARALLEL EXECUTION
- 01 — Read the idea
Decompose into the parts worth thinking about.
Splits the work into focused sub-questions before any spec gets drafted. The first decision is the most expensive one.
- 02 — Three angles, in parallel
Audience, scope, risks. One wall-clock.
Three angles run at the same time. Latency of one, depth of three.
- 03 — Stress-test, then compose
Find the gap. Then write the PRD.
The stress-test pass flags weakness. The composed PRD respects the critique and streams to you.