How do you debate with AI?

Type your question, pick a panel of AI personas or a ready-made template and press start. Each persona argues its position, they answer each other across rounds, and an AI judge ends the debate with a verdict, decision scores and next steps. You can also debate an AI one on one: pick a character and argue your side.

How is Debatly different from ChatGPT?

ChatGPT gives you one answer and tends to agree with you. Debatly makes several AI perspectives disagree on purpose, so weak arguments get challenged before you decide. And when you just need a normal AI chat or an image, it is included too.

Can I create my own AI character?

Yes. Describe a name, personality, knowledge and tone of voice, then use the character in debates, rooms and chat.

How does interview or negotiation training work?

Pick a scenario and the AI plays the other side, such as a recruiter or your manager. After the session you get a score and specific tips to improve.

What is a group room?

A live conversation with 2 to 5 AI characters at once. An AI director decides who speaks next, the characters react to each other and you can jump in anytime, like chairing a meeting of experts.

Which AI models can I use?

Debatly gives you the latest models from OpenAI, Anthropic, Google, xAI and Cohere in one place. You can pick a model for every chat and every character, so a debate can put different AI models against each other.

Can I also chat with AI and create images?

Yes. Every plan includes a classic AI chat with the latest models and an AI image generator. Debates, characters, group rooms, chat and images all use the same credits.

Is there a money-back guarantee?

Yes. If Debatly is not for you, ask within 7 days of your first payment and we refund it in full.

Your chats and debates are private and visible only to you unless you decide to share them. We never sell your data and never use it to train AI models.

debatly debatly

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3,906 people have signed up to debate, chat and create on Debatly registered users

Debate with AI. See every side before you decide.

Ask any question. Several AIs with opposing views argue it out, then Debatly gives you a clear verdict with the strongest arguments and your next steps.

Debate examples

Career · Panel of 3 AIs

“Should I quit my job and start my own business?”

GPTClaudeGeminiGrokCohere

OptimistGPT

For

Optimist · For

Your experience and network are the best startup capital there is. Right now you give them to someone else’s company.

SkepticClaude

Against

Skeptic · Against

Small businesses die from cash flow, not bad ideas. How many months can you last without income?

AnalystGemini

Data

Analyst · Data

Land 3 paying customers while employed. With 6 months of savings, the risk becomes manageable.

Money · Panel of 3 AIs

“Should I buy a home or keep renting?”

GPTClaudeGeminiGrokCohere

OptimistGPT

For

Optimist · For

Every payment builds your own wealth, and nobody can raise your rent or ask you to move out.

SkepticClaude

Against

Skeptic · Against

A mortgage ties you to one place for decades. Add maintenance and fees, and renting looks cheaper.

AnalystGemini

Data

Analyst · Data

Compare the yearly cost of owning with rent plus returns on your down payment. Past 7 years, buying usually wins.

Society · Panel of 3 AIs

“Should students be allowed to use AI for homework?”

GPTClaudeGeminiGrokCohere

OptimistGPT

For

Optimist · For

Students will use AI at work anyway. School is the place to learn to use it well and critically.

SkepticClaude

Against

Skeptic · Against

Homework exists to build thinking. If AI does the thinking, the grade stops meaning anything.

AnalystGemini

Data

Analyst · Data

Studies are still early. Schools that set clear rules report fewer problems than outright bans.

Startup · Panel of 3 AIs

“Should I launch my app now or keep polishing it?”

GPTClaudeGeminiGrokCohere

OptimistGPT

For

Optimist · For

Real users teach you more in a week than a month of polishing. Nobody remembers a rough v1.

SkepticClaude

Against

Skeptic · Against

You only get one first impression. A buggy launch can burn your best early adopters.

AnalystGemini

Data

Analyst · Data

If the core flow works and crashes are rare, launch to a small group first and fix what they hit.

Education · Panel of 3 AIs

“Is a master’s degree worth it for my career?”

GPTClaudeGeminiGrokCohere

OptimistGPT

For

Optimist · For

A degree opens doors to senior roles and higher starting pay. Two years is a small price for decades.

SkepticClaude

Against

Skeptic · Against

Two years without full income is expensive, and many fields value experience more than a diploma.

AnalystGemini

Data

Analyst · Data

Check 20 job ads you want. If most require the degree, go. If not, work and study part-time.

Example verdictHow the verdict works

Yes, but quit only after your first 3 customers.

Buy if you plan to stay 7+ years. Otherwise rent and invest.

Allow it with clear rules, and grade the process, not just the result.

Launch now, to a small waitlist first.

Only if the jobs you want actually require it.

62 % for 38 % against

Should I change jobs? Rent or buy? Should AI replace teachers? Is an EV worth it? Is my startup a good idea? Is a master’s degree worth it?

§ 01 · What is an AI debate

What does it mean to debate with AI?

An AI debate is a conversation where your question isn’t answered by one chatbot, but by several AIs with different roles. One looks for opportunities, another for risks, a third runs the numbers. They push back on each other, so weak spots surface before they cost you.

Debatly turns every debate into a verdict: the strongest arguments, a score for each side and recommended next steps. Great for personal decisions, business, studying and practicing your arguments.

AI debate compared with a regular AI chat
Compare	Regular AI chat	Debate on Debatly
Perspectives	One	2 to 5 at once
Pushback	Tends to agree	AIs challenge each other
Conclusion	“It depends”	Verdict and argument score
AI models	One model	GPT, Claude, Gemini, Grok and Cohere head to head
Characters	Generic assistant	Historical and custom characters
Training	No feedback	Feedback and scores

AI chatDebatly

One view2 to 5 views

“It depends”Scored verdict

Tends to agreeAIs challenge each other

Forgets youPersonal memory

How to debate with AI in 3 steps

A typical debate takes minutes

Ask your question

A decision, an idea, a dilemma or a hot topic. Pick a debate format and participants: ready-made roles, historical figures or your own characters.
Watch the AIs argue

Opening arguments, rebuttals and closing statements. The AIs respond to each other and you can jump in anytime to ask or add context.
Get the verdict

The strongest arguments for and against, a score for each side and concrete next steps. Save the debate and pick it up later.

§ 02 · AI debate formats

Every question deserves its own kind of debate

From a quick for-and-against duel to a Socratic dialogue. Pick a format, or let Debatly choose one based on your question.

Perspective panel

An optimist, a skeptic and an analyst look at your question from three angles.

Best for: Big decisions with many unknowns

For vs. against

Two AIs take opposite sides and argue it out, round after round.

Best for: Yes or no questions

Model vs. model

Different AI models answer the same question and challenge each other.

Best for: Comparing how the top AIs think

Devil’s advocate

One AI attacks your idea as hard as it can, so you find the weak spots first.

Best for: Stress testing a plan you like

Socratic dialogue

Instead of answers you get sharp questions that lead you to your own conclusion.

Best for: Values, ethics and personal questions

Pitch defense

A jury of tough investors grills your idea, then scores it.

Best for: Startups, projects and proposals

§ 03 · Features

Built for real conversations

Verdicts, live rooms, characters with real depth and memory. Everything you need to think out loud with AI.

Decisions, not ambiguity

A judge’s verdict with the strongest arguments, scores and next steps.

Live group rooms

2 to 5 characters and an AI director who picks who speaks next.

Personal memory

Teach Debatly about you once. Every answer fits your life.

Characters and training

Deep character profiles, your own experts, interview and negotiation practice.

Chat, images, writer

GPT, Claude, Gemini, Grok and Cohere, AI images and 130+ writer templates.

Decisions, not ambiguity

Every debate ends with a judge’s verdict: a summary, the strongest argument for and against, a score for each option and concrete next steps.

Judge’s verdict

Summary: Take the offer, but negotiate remote days first.

For: 20% raise compounds over years Against: 8 extra hours of commuting a week

New job7.8

Stay6.1

Next: Ask HR about 2 remote days

Live group rooms

Invite 2 to 5 characters into one room. An AI director decides who speaks next, characters build on each other’s arguments, then hand the floor to you.

So AL SH 3 / 5

AI directorSocrates builds on Ada’s point next

Then the floor is yours →

Deep character profiles

Every character has a rich identity: backstory, goals, personality traits, a way of speaking and clear rules for what they will and won’t do.

Backstory: Athens, 5th century BC
Goals: Expose hidden assumptions
Voice: Asks, rarely answers
Won’t: Give you easy answers

Latest AI models

Choose from the latest models by OpenAI, Anthropic, Google, xAI and Cohere in chat, debates and group rooms.

OpenAIGPT

AnthropicClaude

GoogleGemini

xAIGrok

CohereCohere

Conversation memory

Characters can remember what you told them between conversations, like names, facts and preferences. Turn memory on per character.

Name: Anna Training for a marathon Prefers short answers

Memory for Coach Mia

Create your own characters

Build characters with exactly the expertise you need and use them in one-on-one chat, group rooms and debates.

1:1 chat

Group rooms

Debates

Create one

§ 04 · Use cases

What people debate with AI

Decisions, ideas, relationships, work and study. Pick an area and start with a ready-made debate.

Decision making

“Should I take the new job?” See every side before you decide.

Business advice

Pricing, hiring, expansion. Advice from your own AI board.

Startup validation

Let an investor and a customer tear your idea apart before the market does.

Interview practice

Mock interviews with a tough recruiter and scored answers.

Negotiation training

Rehearse salary talks, pricing or a difficult client.

Debate practice

Prepare for a school debate, a competition or a meeting. The AI opponent won’t go easy.

Brainstorming

A marketer, an engineer and a customer generate ideas from different angles.

Learning and roleplay

Discuss inventions with Tesla or ethics with Socrates. Lessons that stick.

Career coaching

Career change, promotion, reskilling. A plan with an outside view.

Relationships

How does the other side see it? Rehearse a hard conversation first.

Hot topics

Nuclear power, AI in schools, remote work. The best arguments on both sides.

Writing feedback Argument generator Study buddy Socratic method Life coach Emotional support chat Simulated conversations Product brainstorming AI devil’s advocate LLM council AI vs AI debate Multi-agent AI chat Roleplay chat AI characters AI dungeon master ChatGPT alternative

§ 05 · Train with AI

Practice with AI. Then nail it for real.

Interviews, debates or negotiations against an AI opponent that won’t let you off easy. After every session you get a score and specific tips to improve.

Jane, Head of HR Interview: Product Manager Motion: Phones should be banned in schools Salary raise negotiation

Session live

Tell me about a time you had to say no to an important stakeholder. What exactly did you do?

Sales wanted a feature for one client. I showed data that it would delay the roadmap by two months and proposed a cheaper alternative.

Fine. And how did it end? Did the client stay? I want the outcome, not just the process.

A ban solves nothing. Students need to learn to handle technology, not run from it. Why should school be the exception?

Because research shows that even a phone lying on the desk lowers concentration. School should protect time for learning.

Which research? And how do you explain schools that use phones in class and saw results improve?

This year’s budget is closed. I can offer 5 percent from January, that is really the maximum.

I understand. Over the past year I took on two extra projects, and the market rate for my role is 18 percent higher. I was expecting 15 percent.

Fifteen is a lot. What if we talk about ten, with a review mid-year?

Session score 7.4/106.8/108.1/10

Answer structure 8

Specificity 6

Confidence 8

Tip: Use the STAR method. You were missing a result with a concrete number.

Tip: Strong argument, but no source. Keep a specific study ready and anticipate the counterexample.

Tip: Great anchor and arguments. Next time decide in advance what you would accept instead of money.

§ 06 · AI characters

Who do you want to debate?

Pick from a library of historical figures and community characters, or create your own. Each has a personality, knowledge and a voice.

Tech

Business

Finance

Strategy

James financially-rigorous

Finance

Elena brand-obsessed

Marketing

Dev architecture-focused

Tech

Kai security-first

Tech Browse all characters

§ 07 · Group rooms and scenarios

Invite several characters into one room

A live chat with several characters at once. Pick a scenario, invite whoever you want and steer the conversation.

# Pitch defense: car-sharing app Scenario: Pitch to a jury · 3 characters + you

A L P

Alex · investorWhat does it cost to acquire one user, and how long until it pays back?

Lisa · marketerAlex, car sharing lives or dies on density. I’d start with one neighborhood, not the whole city.

Good point. Peter, what’s the biggest risk you see?

PPeter is typing

Popular scenarios Creative Collaboration Easy Cultural Exchange Easy Mentor Session Easy The Brainstorm Easy Therapy Session Easy World Building Easy Code Review Medium All scenarios

§ 08 · More than debates

AI chat and image generator in one subscription

No need for three different apps. Debatly gives you debates, a classic chat with top models and image generation.

AI chat

Top models

Outline a 10-minute talk on AI in education.

Sure. I suggest 5 parts: 1. Where AI is already in schools, 2. Benefits for students, 3. Risks and cheating, 4. What other countries do, 5. Recommendations for your school.

Classic chat with GPT, Claude, Gemini, Grok and Cohere. Turn any conversation into a debate in one click.

Chat with AI →

AI image generator

Text to image

25 image models for illustrations, portraits, photos and logos.

Open generator →

§ 09 · Debate library

Explore finished AI debates

Browse the full library

Examples of what a finished debate looks like. Click one to run it yourself.

Popular

§ 10 · How the verdict works

How the AI judge reaches a verdict

Every debate ends with a verdict, a for and against split and scores for each option. Here is what is behind those numbers, and what they cannot tell you.

01
Who judges

A separate judge persona that took no side in the debate. It runs on the judge character’s model, or on the model you picked for the debate, and it reads the full transcript of every round before it decides.
02
What it weighs

The evidence and reasoning on each side, how well each argument held up against the replies, the hidden risks and the assumptions everything rests on. You can set the judge to balanced, strict or gentle.
03
What the numbers mean

“62 % for” means the debate as a whole leaned 62 to 38 toward yes. It is not a poll and not a probability. Option scores from 0 to 10 rate each choice on upside, risk, difficulty and the judge’s confidence.
04
The honest limit

A verdict weighs the arguments that were made. It is not a fact. Models can share the same blind spots and sound sure while being wrong, so check numbers, laws and medical or financial advice against a primary source or a professional.

The judge returns a short summary, the strongest argument for and against, a hidden risk, the key assumptions, a recommendation and three next steps. You can ask a follow-up question and the judge updates the verdict with the new information.

§ 11 · Research

Does debating with AI actually help?

Debate between AI models is an active research topic, not just a product idea. Here is what studies found so far, including where it falls short.

What the research supports

AI safety via debate Irving, Christiano, Amodei · 2018
Proposed debate between AI agents as a way for a person to judge answers they could not check alone: a false claim is easier to expose when another AI is rewarded for exposing it.
Improving Factuality and Reasoning in Language Models through Multiagent Debate Du, Li, Torralba, Tenenbaum, Mordatch · 2023
Several copies of a model proposed answers, criticised each other over a few rounds and converged. This improved math and reasoning results and reduced made up facts compared with a single answer.
Debating with More Persuasive LLMs Leads to More Truthful Answers Khan et al. · 2024
When two models argued for opposing answers, both human and AI judges without expert knowledge picked the correct answer more often than when they heard only one side.

Where it falls short

Towards Understanding Sycophancy in Language Models Sharma et al. · 2023
AI assistants trained on human feedback tend to tell people what they want to hear. A single chatbot agreeing with you is weak evidence, which is why Debatly gives the models opposing roles.
On the Conversational Persuasiveness of Large Language Models: A Randomized Controlled Trial Salvi, Horta Ribeiro, Gallotti, West · Nature Human Behaviour, 2025
In a randomized trial with 820 people, GPT-4 that knew a few personal details about its opponent was more persuasive than humans. Being convinced by an AI is not proof that it is right.
Should we be going MAD? A Look at Multi-Agent Debate Strategies for LLMs Smit et al. · 2023
Multi-agent debate did not reliably beat simpler methods such as asking one model several times, and results depended a lot on settings. Debate is a tool, not a guarantee.

What this means for you

Use a debate to find the strongest arguments on each side and the questions you had not thought of, not to outsource the decision. Putting models from different providers against each other helps, but they are trained on similar data and can still miss the same thing. Treat the verdict as a well argued second opinion and check the facts that matter.

§ 12 · Blog and guides

Get more out of AI

All articles

Learning · 14 min read

Hasty Generalization: Examples and How to Tell When a Sample Is Enough

What a hasty generalization is, why small samples fool even trained researchers, how to tell a fair conclusion from a jump, and what to say when someone builds a big claim on one story.

Learning · 14 min read

Survivorship Bias: Examples and How to Find Who Is Missing

Learning · 14 min read

Bandwagon Fallacy: Examples, When Popularity Counts and How to Respond

Learning · 14 min read

Confirmation Bias: Examples and 7 Ways to Test Your Own Beliefs

§ 13 · Who is behind Debatly

Built by Martin Krupauer in Prague

“I built Debatly because a single AI answer tends to agree with whoever is asking. Before a big decision I wanted something that argues back.”

Debatly is an independent product made in the Czech Republic. Martin writes or reviews every article on the site.

About the author → [email protected]

Numbers on this page

registered accounts: 3,906
arguments made by AI debaters: 582

Counted live from our database.

§ 14 · Pricing

Pick a plan and start today.

Debates, training, characters, chat and images in every plan. Cancel anytime. Compare plans in detail

7-day money-back guarantee

Starter

For trying debates on your own questions.

$19 / month

7-day money-back guarantee, cancel anytime

Up to ~50 debates or ~500 chat messages a month
Fast and standard models: GPT-6 Sol, Claude Sonnet 5, Claude Haiku
Debates with up to 3 AIs and 2 rounds
Personal memory: 100 facts
Group rooms with up to 3 characters
5 custom characters
AI chat and image generator

Pro

For people who decide, practice and create every week.

$39 / month

7-day money-back guarantee, cancel anytime

Up to ~80 debates or ~1,000 chat messages a month
Premium models, including Claude Opus 5.5
Debates with up to 5 AIs and 5 rounds
Personal memory: 1,000 facts and an About you profile
Group rooms with up to 5 characters
25 custom characters
30 training sessions a month with scoring

Max

For heavy users and professionals.

$89 / month

7-day money-back guarantee, cancel anytime

Up to ~200 debates or ~2,500 chat messages a month
The most capable models: GPT-6 Astra and Claude Fable 5.1
2.5x the monthly credits of Pro
Personal memory: 10,000 facts
Unlimited custom characters
Unlimited training sessions
Everything in Pro

ProMost popular

$39 / month

~80 debates · 1,000 memories · 5-character rooms · premium models

Compare all plans

§ 15 · FAQ

AI debate FAQ

Didn’t find an answer? Email us at [email protected].

An AI debate is a structured discussion between several AI personas with different viewpoints, such as an optimist, a skeptic and a domain expert. Instead of one averaged answer you get the strongest arguments for and against, followed by a verdict you can act on.

Stop asking one AI. Start a debate.

One question, many perspectives, a clear verdict.

Debate with AI. See every side before you decide.

What does it mean to debate with AI?

How to debate with AI in 3 steps

Ask your question

Watch the AIs argue

Get the verdict

Every question deserves its own kind of debate

Perspective panel

For vs. against

Model vs. model

Devil’s advocate

Socratic dialogue

Pitch defense

Built for real conversations

Decisions, not ambiguity

Live group rooms

Personal memory

Characters and training

Chat, images, writer

Decisions, not ambiguity

Live group rooms

Deep character profiles

Latest AI models

Conversation memory

Create your own characters

What people debate with AI

Decision making

Business advice

Startup validation

Interview practice

Negotiation training

Debate practice

Brainstorming

Learning and roleplay

Career coaching

Relationships

Hot topics

All use cases

Practice with AI. Then nail it for real.

Who do you want to debate?

Invite several characters into one room

AI chat and image generator in one subscription

AI chat

AI image generator

Explore finished AI debates

Ask for a raise, or look for a new job?

Index funds or a rental property?

Will AI replace programmers?

Is a four-day work week a good idea?

Should I move abroad in my thirties?

Should phones be banned in schools?

How the AI judge reaches a verdict

Who judges

What it weighs

What the numbers mean

The honest limit

Does debating with AI actually help?

What the research supports

Where it falls short

What this means for you

Get more out of AI

Hasty Generalization: Examples and How to Tell When a Sample Is Enough

Survivorship Bias: Examples and How to Find Who Is Missing

Bandwagon Fallacy: Examples, When Popularity Counts and How to Respond

Confirmation Bias: Examples and 7 Ways to Test Your Own Beliefs

Built by Martin Krupauer in Prague

Pick a plan and start today.

Starter

Pro

Max

AI debate FAQ

What is an AI debate?

How do you debate with AI?

How is Debatly different from ChatGPT?

Can I create my own AI character?

How does interview or negotiation training work?

What is a group room?

Which AI models can I use?

Can I also chat with AI and create images?

Is there a money-back guarantee?