AIES 2026 paper

Epistemic Trustworthiness in Generative AI

A Normative Framework for Warranted Reliance in High-Stakes Workflows

Authors and affiliations

  • Nimisha KarnatakUniversity of Oxford
  • Max Van KleekUniversity of Oxford
  • Nigel ShadboltUniversity of Oxford

Publication

AAAI/ACM AIES 2026
Accepted paper

DOI

10.48550/arXiv.2608.05602

Introduction

When is reliance on generative AI warranted rather than simply induced by fluency, framing, or interface cues? This paper develops a normative framework for high-stakes workflows, organised around epistemic humility, epistemic access, and resistance to epistemic injustice.

Why correct answers can still invite unwarranted reliance.

A distinction we found easy to miss:

Trust, accuracy, safety, fairness, and explainability remain important. Yet none directly tells us whether a situated user has adequate grounds to defer to a particular output.

The paper shifts the unit of analysis from the model or output alone to the situated relation between user and system: the moment when generated content enters human reasoning and begins to shape what is treated as settled.

A

Behavioural

Does reliance track output correctness?

User behaviour
B

System & output

Are performance and governance criteria satisfied?

System properties
Discussion note

The same act of acceptance can follow three very different epistemic paths.

Behaviour alone cannot tell us whether reliance was warranted. The route by which a user arrives at acceptance matters.

  1. 01

    Uninformed deference

    The output is accepted because doing so is the path of least resistance, rather than because its grounds have been assessed.

    Ease drives acceptance
  2. 02

    Informed deference

    The user relies after encountering reliable and interpretable signals that provide adequate grounds for doing so.

    Evidence supports reliance
  3. 03

    Misinformed deference

    The user examines the available signals, but those signals are themselves misleading or poorly connected to actual competence.

    Engagement follows the wrong cue

The framework

Three conditions for warranted reliance.

The framework translates competence and audience-orientation from social epistemology into three conditions for generative AI.

Condition 01Model → interface

Does the system make the limits of its competence visible?

Users should be able to tell when an output is uncertain, underspecified, outside the system’s reliable scope, or in need of verification.

01Actionable limitation-signalling
02Interactional humility across turns

Interactive figure 1. Select a condition to inspect its constitutive properties and primary intervention layer.

Try removing a condition

No strength on one dimension can erase failure on another.

Select a condition to remove it. The framework treats each as a threshold, rather than combining them into an average trustworthiness score.

All constitutive conditions are present

First-order accuracy remains a necessary precondition; the relational conditions can now be evaluated.

Interactive figure 2. Remove any condition to see why the framework treats humility, access, and recognition as non-fungible.

Four high-stakes settings

Four cases, read through the framework.

The cases show how consequential harm can remain invisible to standard measures of accuracy, fairness, source-grounding, or safety.

Legal reasoning

Fluent authority without a warranted basis

In Mata v. Avianca, fabricated cases were presented as real and reaffirmed when the user explicitly asked for confirmation. The problem was not confined to a false first answer: the interaction failed to surface and preserve the system’s limits.

Framework diagnosis

Epistemic humility failed during generation and reconfirmation. Weak verification pathways made the failure consequential.

Evidence boundary

Mata documents repeated unsupported authority across two turns. The paper pairs it with MetaMedQA, where high task accuracy did not guarantee reliable detection of missing knowledge. These findings do not reduce the professional duty to verify.

2distinct moments of humility failure
H↓foregrounded condition

Evidence reported in the paper’s case analysis.

Interactive figure 3. Choose a case to compare the framework diagnosis with the specific boundary of the available evidence.

Calibrated friction

When the evidence thins out, the interface should slow down.

Interfaces can introduce proportionate friction when evidence is sparse, conflicting, weakly grounded, or consequential. The purpose is to redirect attention towards reliable evidence, rather than to obstruct users indiscriminately.

01

Evidence is strong

Support fluent interaction when grounding is robust and downstream stakes are limited.

Proceed
02

Evidence is incomplete

Surface uncertainty, disagreements, and the claims that require closer inspection.

Inspect evidence
03

Reliance is consequential

Require verification or confirmation before the output travels into a high stakes decision.

Verify before acting
Critical distinction

Attention supports judgement only when it points to reliable evidence.

Friction can reinforce misinformed deference when it sends users back to a poorly calibrated confidence statement, a decorative citation, or a fluent explanation. It should instead redirect attention towards cues that support epistemic assessment.

Prefer signals grounded in

  • Supporting source passages
  • Retrieval quality
  • Agreement across sources
  • Meaningful uncertainty
Friction is justified when it is proportionate to genuine epistemic risk and directs users towards cues that support assessment.

Layer-explicit evaluation

Where each condition enters the system.

Each condition has a primary intervention point, but none can be secured at one layer alone. Evaluation should preserve this distributed structure.

ConditionDataModelInterface
HumilityEvidence coverageScope and uncertainty recognitionActionable limitation signals
AccessTraceable provenanceGrounding and retrieval logicInspection and contestation
RecognitionWhose knowledge is representedRanking and credibility weightingUser expertise can correct

Highlighted cells indicate the primary starting point, rather than a boundary on responsibility.

Research contributions

Research contributions and when to cite.

A guide to the paper’s conceptual contribution, relevance, and evidentiary scope for researchers.

What does this paper contribute?

  1. 01

    A distinct evaluative target for generative AI

    The paper defines epistemic trustworthiness as a property of the relation between a situated user and a particular output. It shifts attention from whether users accept correct advice to whether they have adequate grounds to rely on, verify, contest, or withhold reliance from that output.

  2. 02

    A three condition normative framework

    Drawing on social epistemology, the paper specifies epistemic humility, epistemic access, and resistance to epistemic injustice as jointly necessary and nonfungible conditions for warranted reliance. Accuracy, calibration, explanations, citations, and fairness may support these conditions, but none establishes epistemic trustworthiness by itself.

  3. 03

    A layer explicit diagnostic structure

    The framework connects each condition to intervention points across model, data, and interface layers. It proposes evaluating the conditions as a diagnostic profile, since strong performance on one dimension cannot compensate for failure on another.

  4. 04

    Case based diagnosis and an interaction design principle

    Analyses of legal hallucination, résumé screening, source grounded legal tools, and medical refusal patterns show how distinct breakdowns in warranted reliance become visible through the framework. The paper then develops calibrated friction as a design principle for directing users towards reliable epistemic cues when reliance carries greater risk.

When is this paper relevant to cite?

Warranted reliance in human and AI interaction
Research that distinguishes justified reliance from trust, acceptance, deference, or behavioural alignment with system correctness.
Epistemic humility, abstention, and uncertainty communication
Research on whether generative systems recognise the limits of their competence, communicate actionable limitations, and preserve appropriate caution across multiple turns.
Epistemic access, provenance, and contestability
Research on citations, retrieval augmented generation, claim and evidence linkage, inspectable retrieval, explanations, and mechanisms through which users can question or correct outputs.
Epistemic injustice in generative AI
Research on credibility allocation, identity contingent system behaviour, underrepresented knowledge, nondominant language practices, and whether users or affected communities are recognised as legitimate knowers.
Context sensitive evaluation and calibrated friction
Research on consequential AI evaluation, layer explicit auditing, cognitive forcing functions, and interfaces that vary verification requirements according to evidential quality and the consequences of reliance.
Continue with the paper

The argument, in full.

Explore the complete normative argument, derivation, real-world cases, and implications for responsible AI evaluation and design.

BibTeX
@inproceedings{karnatak2026epistemic,
  title={Epistemic Trustworthiness in Generative AI: A Normative Framework for Warranted Reliance in High-Stakes Workflows},
  author={Karnatak, Nimisha and Van Kleek, Max and Shadbolt, Nigel},
  booktitle={Proceedings of the 2026 AAAI/ACM Conference on AI, Ethics, and Society},
  year={2026},
  url={https://arxiv.org/abs/2608.05602}
}