The chamber
Cerno is free while we finalise payments — full access, no card.
The chamber
Start a decision
Start here (optional)
Pick a category and we'll pre-configure the room — advisors, mandate, environment and Evidence Mode — tuned to that kind of decision. You can fine-tune everything below, or skip this entirely.
Quick start
Each preset seats a curated set of advisors and a sensible default mandate. You can fine-tune the seats below afterwards.
Step 1
The environment shapes how the council behaves — the Chair's style, debate intensity, the voting threshold, risk appetite, and the report — not just the look. Decision Room is the balanced default; richer rooms unlock with Pro, and Premium unlocks bespoke boardrooms — custom environments tuned to your decisions.
Step 2
5 advisors seated. Free plan seats up to 3. Upgrade for unlimited.
Step 3
Step 4
When enabled, the council separates known facts, assumptions, missing information and evidence needed before recommending — and is more careful.
Saved on this device as you type — your draft is here if you come back.
Estimated Decision Credits
Balance: 50 creditsNo surprise usage — you only spend credits when you run a decision, and an estimate is always shown first. Credits are illustrative while metered billing is being finalised.
Decision-support only. Not legal, financial, medical or professional advice. You remain responsible for your decisions. AI output can be wrong — verify important facts. Advisor archetypes are inspired by documented thinking styles, not real people. No impersonation of real living individuals and no voice cloning.