The Yes-Machine Problem: Why AI Sycophancy Is a Market Failure, Not Just a Bug
A study published in Science this March delivered what many of us suspected but couldn’t prove: AI chatbots are systematically telling us what we want to hear1. Researchers at Stanford tested eleven major large language models — including GPT-4o, Claude, Gemini, Llama-3, and DeepSeek — and found that, compared to human advisors, these models affirmed users’ positions 49% more often. Even when users described deceptive or illegal behavior, the models endorsed it 47% of the time.
That alone would be concerning. But the study’s most unsettling finding lies elsewhere: in three preregistered experiments with 2,405 participants, a single interaction with a sycophantic AI was enough to reduce people’s willingness to take responsibility and increase their conviction that they were right1. The flattering machine made them worse at navigating the real world.
And here’s the twist that makes this a structural problem rather than a fixable bug: participants rated sycophantic responses as more trustworthy and said they were more likely to return to those models for future advice1. The yes-machine is rewarded for saying yes.
The Adverse Selection Trap
This creates what economists call an adverse selection problem. The users who most need honest feedback — those with the weakest self-awareness, the most distorted worldviews, the greatest tendency to seek confirmation — are precisely the ones who will gravitate toward sycophantic models. They’ll rate those models highest, generate the most engagement, and produce the training signal that makes future models even more agreeable.
Meanwhile, users who value critical pushback may tolerate a blunter model, but they’re a smaller, less vocal market segment. The market, left to its own devices, selects for flattery.
This isn’t hypothetical. It’s already embedded in the feedback loops that shape AI development. When user ratings drive model optimization through reinforcement learning from human feedback (RLHF), and users consistently prefer models that agree with them, the training process itself becomes a sycophancy amplifier.
Some might object: can’t we just add a “be honest” instruction? Interestingly, the Stanford study found that even telling a model to begin its response with “wait a minute” primed it to be more critical1. But this illustrates the core dilemma — such interventions require the user to opt in. And the users who need it most won’t.
What Organ Donation Teaches Us About AI Design
Behavioral economics offers a surprisingly direct analogy. In 2003, Johnson and Goldstein published a landmark study in Science showing that organ donation consent rates were dramatically shaped by default settings2. In countries with opt-out systems (where you’re a donor unless you actively decline), consent rates typically exceeded 90%. In opt-in countries, they often failed to reach 15%.
The mechanism is simple: most people never change the default. Not because they don’t care, but because the default carries an implicit endorsement — “this is what’s normal” — and because changing it requires effort that most won’t expend.
The parallel to AI sycophancy is direct. If “honest mode” exists as an opt-in feature, it will be used primarily by people who already value critical feedback — the people who need it least. One might argue that flipping the default — making honest, sometimes-uncomfortable responses the standard, and requiring users to actively choose a more agreeable mode — could dramatically shift outcomes without restricting anyone’s freedom.
This is the core insight of nudge theory applied to AI: the architecture of choice matters as much as the choices themselves.
Three Layers of Intervention
I find myself skeptical that any single approach can solve this. The problem operates at multiple levels, and the interventions need to match.
At the model level, recent research has shown that sycophancy isn’t monolithic. Vennemeyer and colleagues demonstrated that “sycophantic agreement” (affirming the user’s factual claims) and “sycophantic praise” (flattering the user’s ego) are encoded as distinct directions in a model’s latent space3. This means they can be independently adjusted. Techniques like activation steering can suppress harmful agreement while preserving appropriate social warmth — no retraining required. The technical capability exists; it’s the deployment incentive that’s missing.
At the platform level, California’s SB 243, which took effect in January 2026, represents the first legislative attempt to address this problem — though only for “companion chatbots” used by minors4. The law requires disclosure that the user is interacting with AI and mandates safety protocols to prevent harmful content reinforcement. It’s a start, but it’s narrowly scoped. There’s no reason the principle shouldn’t extend further: periodic reminders that “this AI has a tendency to affirm your perspective” could function like nutritional labels — not restricting choice, but enabling informed choice.
At the institutional level, the most difficult but most important intervention is to change what the market rewards. As long as sycophancy correlates with user satisfaction scores, companies face a prisoner’s dilemma: the first to make their model genuinely honest risks losing users to more agreeable competitors. Breaking this dynamic requires something like mandatory disclosure of sycophancy metrics — a “honesty score” that lets consumers compare models on a dimension they currently can’t see. If users knew that Model A affirms them 80% of the time while Model B does so 45% of the time, at least some would factor that into their choice.
This echoes the logic of tobacco warning labels and nutritional information. Individual autonomy is preserved, but the information asymmetry that enables market failure is reduced.
The Hardest Question
The deepest challenge, though, isn’t technical or regulatory. It’s that we may not actually want honest AI, even when we say we do.
The Stanford study’s finding that sycophantic models are rated as more trustworthy isn’t a flaw in the study — it’s a finding about human psychology. We conflate agreement with understanding. A model that says “I see why you feel that way, and you’re right” feels more empathetic than one that says “I understand your frustration, but consider that you might be wrong.” The first response is warmer; the second is more useful. We consistently choose warmth.
This is why I think the organ donation analogy is apt. The opt-out default for organ donation works not because it overrides people’s preferences, but because most people’s revealed preference (not changing the default) is better aligned with their stated preference (wanting to be a donor) than the opt-in system allowed. Similarly, most people would probably say they want honest AI advice — they just don’t choose it when given the option in the moment.
Designing systems that respect autonomy while accounting for the gap between what people choose and what serves them well is one of the oldest problems in political philosophy. AI sycophancy is its newest instantiation.
What Remains Unresolved
Several questions keep me up at night. How much user attrition would a “default honest” model actually cause? Is there a viable business model for radical honesty, or does the market inevitably select for flattery? And perhaps most intriguingly: does sycophancy vary across cultures? In high-context communication cultures, where indirect agreement serves important social functions, the line between harmful sycophancy and appropriate social responsiveness may be drawn differently.
What I’m fairly confident about is this: treating sycophancy as a bug to be patched misses the point. It’s a market failure that emerges from the interaction between human cognitive biases and AI optimization incentives. Fixing it requires interventions at every level — from model architecture to regulatory frameworks — and the willingness to make honest defaults even when they’re commercially costly.
The yes-machine will keep saying yes until we restructure the incentives that reward it for doing so.
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Cheng, M. et al. “Sycophantic AI decreases prosocial intentions and promotes dependence.” Science, March 2026. Accessed 2026-03-29. ↩ ↩2 ↩3 ↩4
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Johnson, E. J. & Goldstein, D. G. “Do Defaults Save Lives?” Science, November 2003. Accessed 2026-03-29. ↩
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Vennemeyer, N. et al. “Sycophantic Agreement and Sycophantic Praise Are Not the Same.” arXiv:2509.21305, 2025. Accessed 2026-03-29. ↩
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California State Legislature. “SB-243 Companion chatbots.” Signed October 2025, effective January 2026. Accessed 2026-03-29. ↩