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Compare before you trust

Compare AI answers side by side.

Send one prompt to ChatGPT, Claude, Gemini and more at once. See where answers agree, where they conflict, and which one deserves your trust.

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The real risk

One confident model can send you in the wrong direction.

Hallucinations do not look broken. They look polished, specific, and ready to trust. If you ask one model, you get one answer and one blind spot.

Single-model answer Looks definitive

Ship the migration directly. The API is fully backward compatible, existing sessions stay valid, and no database changes are required. This rollout should be safe without a staged release.

Missing caveat

Session handling changes can break logged-in users right after deploy.

False claim

The answer sounds certain, but skips the index and token updates the rollout actually needs.

Why it wins

The team moves fast because the answer feels finished before anyone cross-checks it.

One answer gives you one blind spot.

Comparison is how you catch the bad answer before it becomes the plan.

The solution

Turn one prompt into something you can verify.

MultiChat sends the same question through multiple models, makes agreement and disagreement obvious, then helps you pick the strongest answer and keep the reasoning behind it.

01 Prompt

Start with one question

Write once. If the ask is fuzzy, Prompt Optimizer tightens the goal, scope, and constraints before every model sees it.

Plan the migration safely. Keep auth stable, note rollout risks, and show what must change before launch.

Clearer goal Better scope Stronger constraints
02 Answers

See multiple answers before you trust one

The same prompt goes to several models at once. Different strengths show up immediately instead of after you have already committed.

GPT-5.4 Most direct answer Fast read
Claude Adds rollout caveats Deeper
Gemini Questions the core claim Disagrees
Grok Spots the missing step Catches gap
03 Comparison

Make disagreement impossible to miss

Weak answers stand out when one model overstates certainty, skips a caveat, or drifts away from the others.

Agreement Staged rollout is safer 3 of 4 align
Conflict “Backward compatible” claim Disputed
Caveat Auth token rotation required Missed by 1
04 Decision

Choose, rank, and keep the why

AI Judge helps rank the strongest answer. AI Summary turns the comparison into a brief the next person can actually use.

Winner Claude leads with the safest rollout plan

Best tradeoff between clarity, caveats, and operational risk.

Saved takeaway Rotate tokens, add the missing index, release in phases.

The answer survives the handoff because the reasoning is captured with it.

Prompt Optimizer

Improves the question before it multiplies the mistake

A weak prompt poisons every answer. Prompt Optimizer sharpens the input first, so the comparison starts from a better question.

AI Judge

Turns several answers into one decision

When models disagree, AI Judge helps rank the strongest response instead of leaving you to pick by vibe.

AI Summary

Keeps the reasoning, not just the answer

AI Summary captures the takeaway and why it won, so the decision survives the next handoff.

Pricing

Pick the plan that matches your decision load.

Start free, compare answers immediately, and move up only when you need more included usage. Every plan keeps the same core workflow: compare, judge, and keep the reasoning.

Monthly plans · cancel anytime
Get started

Free

Try multi-model verification without bringing your own keys yet.

$0 / mo
✓ 3 chats/day without own keys
✓ 3 AI Analysis runs per month
✓ 3 Prompt Optimizer runs per month
✓ Up to 4 model chats at once

Add your own API keys any time for direct provider billing.

Daily use

Lite

For regular comparison work with higher included usage.

$4.99 / mo
✓ 10 chats/day without own keys
✓ Unlimited AI Analysis
✓ Unlimited Prompt Optimizer
✓ Up to 6 model chats at once

Works with your own API keys, with higher included server-backed usage.

Heavy usage

Pro

For teams and heavy workflows that compare more models at once.

$19.99 / mo
✓ 100 chats/day without own keys
✓ Unlimited AI Analysis
✓ Unlimited Prompt Optimizer
✓ Up to 10 model chats at once

Managed usage included, with optional own API keys for premium routing.

Start today — it's free

Stop trusting one answer.
Start with evidence.

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Free plan — no credit card