CrossCheck verifies AI answers across multiple models in the background. You get a trust score in seconds — not hours of manual cross-checking.
You copy between ChatGPT, Claude, and Gemini to double-check answers. CrossCheck does it automatically — trust score in seconds, in the background.
No spam. Just early access + what we learn about AI trust.
* self-reported by users doing manual cross-model verification
We analyzed 654 public comments about AI hallucinations. Three pain patterns appear everywhere.
AI doesn't just get things wrong — it gets them wrong confidently. Users lose hours before discovering fabricated information, precisely because the model presents it with certainty.
"The AI confidently generated a technical explanation with fabricated references. I built an entire feature on top of it before discovering it was wrong." — Hacker News
Copy-pasting between models is a full-time job. Users independently discovered that multi-model comparison works — but the manual process is too painful to sustain.
"I run the same question through nine different models side by side on a 27-inch monitor, acting as the human arbiter between them." — Reddit
Checking AI kills the speed advantage that made AI useful. Stuck in a lose-lose: trust the output and risk errors, or verify it and lose the time savings.
"If I have to verify everything the AI produces, it's not saving me time anymore — it's just adding a step." — Hacker News
Verification happens automatically — in the background, while you keep working.
Submit any question or paste AI-generated content for verification. No copy-pasting between tabs required.
CrossCheck queries 3–5 models simultaneously and compares their answers — automatically, in the background.
See where models agree, disagree, and what to watch out for. Confidence in seconds, not hours.
You build with AI but can't manually review every line of generated code. CrossCheck surfaces the disagreements before they become bugs in production.
You need verified sources, not AI-hallucinated ones. CrossCheck shows you where models agree and where the evidence is contested.
You rely on AI for business decisions worth thousands. CrossCheck gives you confidence without requiring technical expertise to verify outputs.
We study AI trust and hallucinations. Here's what we've found.
Free during beta. BYOK — bring your own API keys.