Prepare Cases and Practice Rounds with AI
DebateLab is an AI debate prep and practice app for students and competitive debaters that builds structured cases, finds the weak points in arguments, researches evidence with citations and runs timed practice rounds against an AI opponent.
3-day free trial
3 days
Daily AI prep
Included
$5/month Pro
$5/month + tax
- No credit card required
- Cancel anytime
- Works with any format
Case Generator
What is the best AI debate practice tool?
It depends on what you need. As of October 2026, DebateLab fits students and competitive debaters who want one place to build cases, find weak points, check evidence and run timed practice rounds, in English, Spanish or Hungarian: a 3-day free trial with no card, then $5/month + tax. If you want free practice against an AI opponent in World Schools or Asian Parliamentary style, debatelab.ai, a separate product, says it is free. If you mostly need brainstorming or writing help on any subject, a general assistant such as ChatGPT is more flexible.
Compare AI debate toolsWhat's New
Latest updates and improvements.
Subscription Tiers
Free trial and Pro plan with higher usage limits.
Argument Flowcharts
Visual argument mapping with drag-and-drop nodes.
Upgraded Timer
Tournament-accurate timing with custom formats.
Saved Prep History
Access all your previous cases and sessions.
Crossfire Practice
Train focused questions and answers in a timed exchange.
Sparring Rounds
Practice a timed debate round and review the scorecard.
Everything You Need to Win
Case Generator
Build complete cases with structured arguments, evidence, and counter-strategies.
Case Attacker
Stress-test your arguments and find weaknesses before opponents do.
Brainstorm
Explore unconventional angles and discover fresh argument paths.
Factoids
Find debate-ready evidence with verifiable citations.
Ask Coach
Get mentoring on strategy, structure, and technique.
Crossfire
Practice focused questions and answers in a timed exchange.
Sparring
Practice a timed round against an opponent and review the scorecard.
Source Library
Manage sources that ground AI responses in real evidence.
Debate Timer
Practice with tournament-accurate timing controls.
Flowchart
Map argument structures and rebuttal links visually.
History
Access saved cases, chats, and previous prep sessions.
Simple, Transparent Pricing
Start free, upgrade when you're ready.
Trial
New Users$0 for 3 days
Use the full workflow before deciding on Pro.
- Starter AI prep access
- All 8 prep modes and 3 utilities
- Starter models
- 3-day access
Pro
Power Users$5/month + tax
For heavy prep weeks, tougher topics, and higher daily limits.
- Expanded AI prep access
- All 8 prep modes and 3 utilities
- All 10 models, including Claude Opus and Sonnet, GPT-6.1 Sol, and Gemini
- Priority support
- Active Grounding™ research
There is no permanent free plan. After your trial ends, a subscription is required to continue using DebateLab. Prices as of October 2026.
Active Grounding™ Technology
How we keep AI responses honest.
AI Scanning via Exa
Neural search finds relevant, high-quality sources.
Knowledge Base
Your sources are vectorized for semantic matching.
Context Injection
Verified facts are injected into the AI prompt.
Grounded Output
Responses cite real sources, not hallucinations.
How It Works
Three steps to better debate prep.
Research
AI scans verified sources and builds context for your motion.
Generate
Get structured arguments, evidence, and counter-strategies.
Practice
Refine with coaching, timing drills, and argument mapping.
Built For Everyone in Debate
Whether you are competing, coaching, or judging, DebateLab gives you the edge.
For Debaters
Cut Prep Time in Half
- Generate cases in seconds, not hours
- Find evidence with real citations
- Stress-test arguments before rounds
- Practice with tournament timing
For Coaches
Scale Your Feedback
- Assign motions and review AI-generated cases
- Identify common weaknesses across teams
- Use as a teaching tool for argument structure
- Save time on repetitive prep tasks
For Judges
Deepen Your Analysis
- Explore both sides of complex motions
- Understand argument structures quickly
- Find evidence to verify claims
- Map argument flows visually
Frequently Asked Questions
Pricing, workflow, and product details at a glance.
What is DebateLab?
DebateLab is an AI debate prep and practice app for students and competitive debaters. It has 8 prep modes, including a case generator, a case attacker, evidence research with citations, an AI coach, Crossfire and timed Sparring rounds against an AI opponent, and it is available in English, Spanish and Hungarian.
How much does DebateLab cost?
As of October 2026, DebateLab offers a 3-day free trial with no credit card required. After that, Pro is $5/month + tax for expanded access and all 10 models. There is no permanent free plan.
What do I get with Pro?
Expanded AI prep access, all 10 models including Claude Opus and Sonnet, GPT-6.1 Sol, and Gemini, Active Grounding™ research, and priority support.
Can I cancel my subscription?
Yes, you can cancel anytime from your Settings page. You'll retain access until the end of your billing period.
Does the AI make things up?
We use Active Grounding™ technology to verify claims against real sources. Any unverified information is clearly marked as such.
Can I save and export my work?
Yes! Save cases, brainstorms, and chats to History. Export to Word, PDF, or Google Docs.
Ready to Build Your Next Winning Case?
Join debaters who prep smarter with AI.