1 question. 169 AIs. 1 accurate answer.
Tired of AI giving you false info?
Best answer
Type a question above & we'll show how much the AIs agreed on it.
Your combined answer, & how much the AIs agreed, appears here after you search.
Thinking mode is sometimes slow to be more accurate
Odds of getting the correct answer (we publish the lower number: our tests scored higher)
- ~60%On your own, 3 AIs unaided
- ~82%3 popular AIs & Certainizer™Certainizer →
- ~95%Best 3 picked from 5 more expensive AIs & Certainizer™PLUS →
- ~95%Best 3 picked from all 10 & Certainizer™PRO →
These answers are written by AI & can be wrong, including when they sound certain. Facts that change, like limits, fees, prices & versions, go out of date first. Check anything that matters against its official source. Full disclaimer
Just for fun
When the AIs get it gloriously wrong.
Which AI wins each topic
This is the brain behind Auto-Route: each question goes to the AIs with the best record on that topic. Researched estimates from our 203-topic matrix, plus editorial picks, not a live per-search measurement during pre-launch.
We don't ask every AI. We ask the ones that are actually good at your topic. That's what makes it both more accurate & less expensive than paying for these AIs separately.
Free: 5 searches, then a 12-hour break, no sign-in needed.
- 3 simultaneous AIs
- Auto-routing to the best AIs across ~500 topics, safety, & other variables
- Keep your history & scrapbook
- 7-day trial of PLUS
- No card needed
- Auto-routing to the best of 3 popular AIs across ~500 topics, safety, & other variables + Certainizer™
- Out-of-date answers · 5 facts watched
Crew included
- Auto-routing to the best AIs in this plan across ~500 topics, safety, & other variables + Certainizer™
- Out-of-date answers · 20 facts watched
- Semantic search, find old answers by meaning (last 30 days)
- Non-USA AIs ⚠
- Photo search
AIs included
Crew included
- Out-of-date answers · 50 facts watched
- Semantic search, find old answers by meaning (full history)
- Additional non-USA AIs ⚠
AIs included
Crew included
$19/mo buys you more accurate answers, less noise, less wasted time & embarrassment. Most importantly, we keep watching. When the models change their answer, we tell you, and hand you the receipts, so everyone knows AI got it wrong, not you. Being wrong is expensive.
Tell us what features you'd want.
You're on the list. Thanks!
you get unlimited usage of anything that doesn’t cost us a lot of money but on the few functions like Out-of-date answers & the jobs that look things up on the web, we give you a liberal amount of it & will warn you if we’re getting close to the limit
≈ $60/mo buying separately
(Claude Max · ChatGPT Pro · Google AI Ultra)
* Prices as of June 2026: Claude Max $200/mo · ChatGPT Pro $200/mo · Google AI Ultra $200/mo. Access via one interface with fair-use limits, not unlimited usage of any single plan. "Up to" reflects top-tier comparison; standard mid-tier plans ≈ $20/mo each. Prices may change.