One AI does the work. Several check it.

01 · Ask

Start from one prompt.

Agent is where every question starts: one AI researches and writes the answer, and the AIs you chose check its work. Compare, the answers side by side, waits in the (+) menu, next to your files.

Preview of the message box, with this question typed in and ready to send:

Should we buy the flat we rent, or keep renting and invest the difference?

2 AIs cross-check

Please avoid personal or sensitive data. AI models can make mistakes.

02 · Run

The agent shows its work.

It makes a plan, searches the web, calculates in its own workspace and hands you real files: a chart in the answer, a spreadsheet you open beside the chat. The AIs you chose follow every step and review the answer independently, without ever steering it. Before a risky step, one of them can pause the run until you decide. Scroll to move the run.

Preview of a finished Agent turn:

Should we buy the flat we rent, or keep renting and invest the difference?

Thought for 17s, reviewed by Claude and DeepSeek

Whether buying pays off depends on how long you stay. I'll calculate both paths year by year.
Searched the web · 3 sources: leipzig.de, finanztip.de, homeday.de
Opened the workspace · Calculate 30 years of buying and renting
Compared perspectives: 2 answers
They split on whether paying off a loan beats investing the difference.

Buying pulls ahead in year 9, so over your 12 years it comes out about €9,200 in front.

Shared files: chart.png, buy-vs-rent.xlsx

Three sentences from the answer and what the reviewers noted on each

Purchase costs: 3.5% property transfer tax and 2% for notary and land registry.: Wrong: Saxony has charged 5.5% since 2023, and buying only pulls ahead in year 13.
The flat gains 1.5% in value a year.: Doubtful: with 1% a year, buying only pulls ahead in year 20.
The rate stays at 3.6% until the loan is repaid.: Incomplete: it is fixed for 15 years only.

Without the reviewers, an outdated tax rate would have decided it.

Notes 3, Answers 2

Should we buy the flat we rent, or keep renting and invest the difference?

Working for 0s

Buying pulls ahead in year 9, so over your 12 years it comes out about €9,200 in front.

Purchase costs: 3.5% property transfer tax and 2% for notary and land registry.
The flat gains 1.5% in value a year.
The rate stays at 3.6% until the loan is repaid.

Without the reviewers, an outdated tax rate would have decided it.

Notes 3 Answers 2

03 · Decide

The doubt is marked in the answer.

One answer, read top to bottom, with the reviewers' doubts written into it rather than hidden behind it. Four things carry that.

01

Who checked it

Under every answer stand the AIs that reviewed it and what they found. There is no score: a passage carries a reviewer's note, or nobody objected to it. Unmarked text means no objection, not confirmed.

Reviewed by Claude, DeepSeek

1 wrong · 1 doubtful · 1 incomplete

Unmarked text means no objection, not confirmed.

Notes 3 Answers 2
02

What a reviewer noted

Click a marked passage and its notes open: who noted it, what kind of note it is, and in what words, with the source where the reviewer gave one.

Try the marked sentence.

Purchase costs: 3.5% property transfer tax and 2% for notary and land registry, €17,050 in total.

Wrong: 1 reviewer objects 3.5% property transfer tax

Claude · Wrong

Saxony has charged 5.5% since January 2023. That makes the purchase costs €23,250, and buying only pulls ahead in year 13, after the 12 years you plan to stay.
03

What the colours mean

A noted passage wears the colour of its most serious note: red where a reviewer says it is wrong, amber where one doubts it, grey where something is missing. The mark sits on the sentence it belongs to, so you never have to hold two documents open at once.
- 3.5% property transfer tax red · wrong
- The flat gains 1.5% in value a year amber · doubtful
- The rate stays at 3.6% until the loan is repaid grey · incomplete
- As tenants you pay €925 rent unmarked · no objection
04

What the others answered

When independent views help, or when you ask for them, the agent puts its question to the same AIs. Each answers on its own, and under Answers you read every answer in full, or two side by side.
- Claude If the 12 years are firm, buying is likely the better deal, but not by much, and not for the reason most people think.
- DeepSeek If you are not sure you will really stay 12 years, I would keep renting.

Before a risky step

A reviewer paused before a step

Possible damage: This cancels both contracts, but you asked about the internet contract only. Claude

The step that has not run yet Clicks “Cancel both contracts”

Let it run

The step runs only if you let it. Until then the agent waits, and you can stop the run instead.

Proof, not promises

We benchmarked the consensus.

On 314 closed-book MMLU-Pro questions, the consensus ranks first overall, and pulls clear exactly where the models disagree. It tests the consensus engine behind Watches, Topics and the API, not the agent’s answers.

When the models disagree

Accuracy on the questions where they split · MMLU-Pro

System	Accuracy
consens.io consensus	72.1%
Claude	70.6%
GPT-5.5	69.1%
Gemini	64.7%
Grok	58.8%
DeepSeek	44.1%
Mistral	39.7%

#1Highest accuracy overall and on the hard questions. The top of the field is a statistical tie.

+32ptsLead over the weakest model on questions where the answers split.

See the full benchmark

04 · Monitor

Know when the answer changes.

Turn any question into a Watch and say what you're waiting for. consens.io checks it on your schedule and tells you when the answer moves on new evidence, or when that thing happens.

Watch Moved

Has the EU guidance for general-purpose AI models changed?

Waiting for The AI Office can fine model providers Not yet

WeeklyWhen it moves or is reachedTelegram

Jul 14

First checkThe answer and the sources behind it.

Jul 21

The answer changedNew transparency requirements are now included.

ec.europa.eu

The answer movedTelegram · now

What changed: The answer now includes the new transparency requirements for model providers.
Why: New evidence the earlier answer did not have.
Waiting for: The AI Office can fine model providers

Create a Watch

Why consens.io

Built for decisions that need a second view.

Compare

Original answers stay visible

Open Answers to read what each AI answered when the agent asked, or compare two answers side by side.

Verify

Doubt is marked in place

Where a reviewer finds a passage wrong, doubtful or incomplete, the sentence itself carries the mark, instead of the doubt being smoothed into one confident answer.

Control

You choose the checks

Pick the AI that does the work, the AIs that check it, and whether it reasons first. A review is a second view, not a guarantee: unmarked text means no objection, not confirmed.

Model coverage