Sharp Check exists because AI kept agreeing with me.

I'm Stuart Milne. I run a small business from Christchurch, New Zealand, and I use AI for most of it: plans, prices, emails, the lot.

The answers sounded great. Too often, they were just what I'd hoped to hear. The risk was there, but buried near the end. A guess was stated as fact. And when I pushed back once, it said, “You're absolutely right.”

It's not the AI's fault. Or yours.

AI learns from the answers people rate highest, and people rate agreement highly. So every major AI leans toward your approval. The companies know this. OpenAI pulled a ChatGPT update in 2025 for being too eager to please.

The fix I found wasn't a better prompt. It was pointing at the exact line where the AI bent, and telling it to try again. The trouble is that you can't see those lines from inside the chat.

So I built something that can.

Paste an answer into Sharp Check and four checks run at once:

• Is it telling you what you want to hear?
• Is it stating guesses as facts?
• Did it go along with your assumption instead of questioning it?
• Did it actually answer, or swap the answer for a question?

You see the exact line, and you get one correction prompt to paste back. Most answers come back straight within one or two goes.

How it's sold

No subscription. You buy a pack of checks when you need them, and they never expire. Your first checks are free, with no card and no sign-up.