Some rooms invent a future failure on purpose. They treat the decision as already dead, then ask, without theatrics, why it died. That is the classic pre-mortem: prospective hindsight, not a pep talk and not a postmortem after the money is gone. Founders, operators, and leads reach for it when the yes already feels earned, optimism is thick in the air, and the only safe way to hear bad news is to pretend the bad news already arrived.
pingpong is built for that imagine-it-failed ask on web and iOS. You state one decision as you would make it, name what committing costs (money, people, dates, public words), and run a sequential five-model pass under a failure frame. Default order: Grok, then Perplexity, then ChatGPT, then Gemini, then Claude. Later labs see your question and the prior passes, so they can explain why the bet already failed instead of polishing the pitch. Brand: pingpong at pingpongit.com. Not getpingpong.ai. Definition: What is pingpong. Mechanism: How it works. First run: How to run a pingpong.
Your first eligible web review is free. When you need more, web Plus is $19.99/month and web Pro is $124.99/month. On iOS the listing shows three free pingpongs, then Plus at $24.99/month or Pro at $59.99/month. Start the free web review on pingpongit.com, then open Plans when you are ready for Plus or Pro. Full table: pricing.
What "pre-mortem your decision" means in the room
Anthropologically, a pre-mortem is a licensed funeral for a plan that is still alive. The group jumps forward in time, declares the outcome a failure, and only then collects causes. The move lowers the social cost of dissent: you are not attacking the current yes, you are diagnosing a future that already went wrong. The ritual shows up in strategy offsites, product reviews, capital raises, and family money talks for the same reason: people protect a favored decision until the story is told in past tense.
That is distinct from arguing the live other side, from poking holes in an approval packet, and from asking one friendly model to "take another look" at language it already helped write. It is also distinct from costume doom. The point is one named decision, imagined as failed, with enough time left to revise, delay, or refuse if the failure story lands.
It is not medical second opinion. It is not demographic fairness tooling, not an uptime SLA, and not legal, financial, or HR advice. Neighboring buyer language lives elsewhere: Validate your decision is confirmation-oriented language for checking whether the reasoning is sound before commit; Check your reasoning is a chain audit of premise, inference, and conclusion under sequential challenge before commit; Devil's advocate your decision is classic other-side language for one decision before commit; Poke holes in your plan is conversational approval-gate language for a plan you are about to greenlight; Challenge your assumption names the hidden premise under a decision and invites sequential challenge before commit; Red-team your decision is an adversarial sequential panel on one founder/operator bet before commit; Stress-test your memo is sequential load on an IC memo, board memo, or one-pager before you circulate; Stress-test your deck is sequential load on pitch slides and narrative before a raise send or board pre-read; Find holes in your strategy is markup on a drafted strategy memo or deck before the meeting; Second-guess your plan is adversarial review of a plan you already like before spend, announce, or ship; Pressure-test a decision names the load-test metaphor on one bet before you act; AI decision review treats the decision as the artifact under inspection; AI second opinion covers less-correlated review of an AI answer; Multi-model AI review maps category shapes; Decision insurance is metaphor, not a financial product; When to use pingpong is the timing chooser; Catch AI mistakes before you commit is the habit framing; For founders and For executives are role pages.
It is also not the before you commit ritual hub. That hub indexes scene-specific pauses (hire, pricing, launch, contract, partner, and the rest). Cluster index for pressure and adversarial buyer phrases: adversarial decision review. This page answers the buyer who already speaks classic pre-mortem language: imagine the decision already failed, ask why, then run a sequential five-model pass before commit.
How the sequential failure-frame pass works
Paste one question that states the decision as you would make it, plus what failure would cost once you commit: budget you cannot claw back easily, a hire or vendor lock, a public date, a partner promise, a board expectation. Frame the ask as a pre-mortem: assume the bet already failed; what caused it. Grok drafts first. Perplexity reviews with that draft in view. ChatGPT, Gemini, and Claude follow in order. Each later model sees your question, the prior answers, and a review frame that can agree, correct, restructure, or reject a soft claim. You leave with a final answer and the earlier passes if you want to see where the failure story got teeth.
The handoff is the point. A single chat that helped assemble the case for the decision will often protect the rationale that made the draft feel clean. A later lab, asked to explain a failure that already happened rather than cheerlead the close, plays the licensed autopsy role groups used to run in a room. Named failure causes are useful. Matching "looks solid" with no friction is not. Unresolved split is a checklist for you before commit, not a reason to force a synthetic consensus.
Architecture contrast: Sequential vs parallel AI. Research notes: sycophancy, self-correction limits, Debias AI (decision rubber-stamping, not demographic fairness), Extreme reliability (decision reliability, not infra).
When a pre-mortem earns its keep
Pre-mortem your decision when you already lean yes, the room is polite or aligned, and reversing after commit is expensive. Pricing change. Senior hire. Partnership. Kill or keep a line of work. Public statement. Capital raise terms. The decision is named. Your commit is the irreversible click. Concrete scene pages for other irreversible clicks live under the before you commit hub.
Skip it for early brainstorming, title polish, and choices you can reverse before anyone else feels them. One strong model is enough when being wrong costs almost nothing. Role pages for who tends to run the pass: founders, executives, consultants, investors, lawyers, product managers, teams.
How to run it without outsourcing judgment
Bring the decision you will actually make, not a straw man. State constraints and the cost of failure once you act. Ask the chain to treat the outcome as already failed, then collect causes. Read the middle passes, not only the final line. Treat independent convergence on the same failure cause as a stronger signal than polite agreement. Escalate what the chain cannot settle to counsel, finance, or domain experts. pingpong runs the pre-mortem on the AI-shaped decision you were about to commit. It does not replace the people who own the outcome.
Classic other-side language: Devil's advocate your decision. Classic steelman language: Steelman your decision. Argue both sides: Argue both sides. Validate your decision: Validate your decision. Check your reasoning: Check your reasoning. Approval-gate hole-poking: Poke holes in your plan. Hidden-premise challenge: Challenge your assumption. Adversarial panel language for a named bet: Red-team your decision. Memo circulation stress before send: Stress-test your memo. Strategy markup before a live room: Find holes in your strategy. Adversarial plan language when you already like the plan: Second-guess your plan. Load-test framing when you want stress language: Pressure-test a decision. Practice name when you want the category frame: AI decision review. Fair single-model contrast: pingpong vs ChatGPT. Adjacent review products: pingpong vs RigorDesk, pingpong vs AskVerdict AI, pingpong vs AI Consensus.
Plans
Your first eligible web review is free. Further web reviews need a subscription. Web Plus is $19.99/month. Web Pro is $124.99/month. iOS lists three free pingpongs, Plus at $24.99/month, and Pro at $59.99/month (yearly options appear on the App Store). Confirm the live plan at checkout. Details: plans and pricing. Related: Is pingpong worth it.
Imagine the failure before you commit
Take the decision sitting ready for your yes. Restate it as a clear question with what commit costs. Ask the chain to assume it already failed and explain why. Run the default pingpong order once: Grok → Perplexity → ChatGPT → Gemini → Claude. Keep what survives sequential failure-frame pressure. Fix what later models break. Escalate what they cannot settle. Start with the free eligible web review on pingpongit.com. If the ritual earns a place before your next commit, choose Plus or Pro under Plans (web Plus $19.99, web Pro $124.99; iOS Plus $24.99, Pro $59.99). Or start on the App Store. Classic other-side language: Devil's advocate your decision. Classic steelman language: Steelman your decision. Argue both sides: Argue both sides. Approval-gate hole-poking: Poke holes in your plan. Hidden-premise challenge: Challenge your assumption. Adversarial panel language: Red-team your decision. Memo before circulate: Stress-test your memo. Strategy hole language: Find holes in your strategy. Adversarial plan language: Second-guess your plan. Load-test language: Pressure-test a decision. Practice name: AI decision review. Classic steelman language: Steelman your decision. Argue both sides: Argue both sides. Validate your decision: Validate your decision. Check your reasoning: Check your reasoning. Deck stress: Stress-test your deck. Cluster index: adversarial decision review. Scene index: before you commit. Not legal, medical, HR, or financial advice.