Use this argument checker for coursework, policy discussions, or decisions that hinge on a chain of reasoning. Paste an argument to see whether its conclusion follows from its premises, then inspect which premises need evidence or may be false. You leave with a validity check, a premise-by-premise assessment, and the key gap to investigate before relying on the conclusion.
Soundness
Check whether an argument follows logically and rests on true, supported premises.
Use Soundness
$49.99 / month
Includes every Agent on Ai-GEN. 15,000+ Agents for one monthly price, cancel anytime.
From the creator of GPTs with 8.5M+ chats · 4.2 stars · 37K+ reviews
Start Soundness — $49.99 / month
Your account is created at checkout. After payment, this Agent opens when access is ready.
Already subscribed? Sign in · Account terms
Cancel future renewals from Account & Billing → Subscriptions.
What it writes
- Validity check of the argument
- Premise-by-premise truth assessment
- Main evidence gap to investigate
How to use it
In your first message, paste the argument as stated and label its premises and conclusion. Include source excerpts or evidence for factual premises so the assessment can distinguish unsupported claims from logical errors.
What you bring
- The argument’s premises and conclusion
- Any sources or evidence behind its premises
- Separate the premises from the conclusion
A good fit for
- Checking a claim in an essay before submitting it
- Testing a policy argument before using it in a meeting
- Assessing reasoning behind a major personal decision
Ways to start
A few requests this Agent can handle.
My essay argues that all mammals are warm-blooded, whales are mammals, so whales are warm-blooded. Is the reasoning valid, and are both premises true?
A colleague says the city should ban cars downtown because traffic causes pollution and bans always improve air quality. Check the logic and identify which claims need evidence.
I’m considering a home solar system because electricity prices keep rising, and solar always pays for itself within five years. Assess the argument and its assumptions.
Good to know
This workspace provides text assistance.
- Verifying current claims without source material
- Replacing specialist judgment in high-stakes decisions
- Checks reasoning from the text and evidence you paste
- Cannot independently verify facts or retrieve sources
Before you subscribe
What am I buying?
One monthly subscription that opens this Agent and every other Agent on Ai-GEN. Cancel from Account & Billing.
What happens after payment?
Checkout creates or uses your Ai-GEN account. When payment and entitlement are confirmed, the purchased Agent opens. Choose a starter task, add your inputs, and send your first request.
Can I cancel?
Yes. Manage cancellation under Account & Billing → Subscriptions. Review the status and cancellation details shown there before confirming.
Can I use the response in my work?
Use it as a draft to review and adapt. Verify calculations, facts, rights, and suitability before relying on it. Do not provide information you do not have permission to share.
Report This Agent
Tell Ai-GEN about broken behavior, poor performance, misleading capabilities, or a safety concern.