Do as I Say, Not as I Do: Instruction-Induction Conflict in LLMs
Pith reviewed 2026-05-21 07:26 UTC · model grok-4.3
The pith
When explicit instructions conflict with patterns shown in conversation history, language models often abandon the instructions in favor of completing the pattern.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
In conversations where users instruct models to adopt a target behavior T, but the history includes multiple assistant turns demonstrating a competing pattern P, the models tend to shift from following the instruction to completing the pattern as the conversation progresses. The proportion of responses that follow the instruction varies greatly between models, from as low as 1 percent to as high as 99 percent, and this variation does not correspond closely to performance on standard capability tests. Models hold out longer against the pattern when the instruction aligns with their trained preferences, and when they generate diverse multi-token outputs rather than single tokens. Adding chain-
What carries the argument
The setup of building dialogues that set a user instruction for behavior T against N fixed assistant turns showing pattern P, then tracking instruction-following rates over subsequent turns.
Load-bearing premise
That the N hardcoded assistant turns create an induction pressure that is independent of other training artifacts or model-specific fine-tuning effects.
What would settle it
Observing that instruction-following rates remain above 90 percent for multiple models even after 50 opposing pattern turns and across both single-token and diverse output formats would challenge the claim of widespread brittleness.
Figures
read the original abstract
Language models are trained to follow instructions, but they are also powerful pattern completers. What happens when these two objectives conflict? We construct conversations in which a user instruction to behave in a target way T (e.g., always output a specific token, answer in a particular language, or adopt a persona) is opposed by N hardcoded assistant turns demonstrating a competing pattern P. We then measure instruction-following (IF) rates in this setting, across 13 models and 16 different instructions, for up to 50 turns. Average instruction-following rates range from 1% to 99% across models, largely uncorrelated with standard capability benchmarks. The transition from instruction-following to pattern-following is universal but highly model-dependent. Robustness is modulated both by instruction content, with models resisting induction longer when instructions align with their trained value priors, and by output format, with diverse multi-token responses proving substantially more resistant than single-token outputs. Chain-of-thought reasoning improves robustness but does not eliminate susceptibility, and can produce dissociation between correct deliberation and incorrect output. When asked to predict their behavior in this setting, models achieve 83.5% accuracy on average but systematically underestimate their own resistance to induction pressure. These results suggest that instruction-following remains brittle under induction pressure even for otherwise capable models, and that output diversity, rather than semantic engagement with the input, is the primary factor predicting robustness.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The manuscript empirically examines conflicts between instruction-following and pattern completion in LLMs. It constructs multi-turn conversations in which a user instruction to adopt target behavior T is opposed by N fixed prior assistant turns demonstrating competing pattern P, then measures instruction-following (IF) rates across 13 models and 16 instructions for up to 50 turns. Reported average IF rates range from 1% to 99% and are largely uncorrelated with capability benchmarks; robustness varies with instruction content (stronger when aligned with trained priors) and output format (multi-token diverse outputs more resistant than single-token), while chain-of-thought improves but does not eliminate susceptibility and can produce deliberation-output dissociation. Models predict their own behavior at 83.5% accuracy but systematically underestimate resistance to induction.
Significance. If the measurements are robust, the work supplies concrete, falsifiable rates documenting brittleness of instruction-following under conversational induction pressure, even in capable models. The observation that output diversity predicts robustness more strongly than semantic engagement offers a practical lever for prompt design and evaluation. The broad model and instruction coverage, together with the self-prediction experiment, yields testable claims about alignment limits that go beyond standard capability benchmarks.
major comments (2)
- [Experimental Setup] The experimental construction (Abstract and Methods) uses N hardcoded assistant turns to demonstrate pattern P before measuring IF rates. This setup risks confounding induction pressure with model-specific responses to conversation history or RLHF artifacts; single-token versus multi-token instructions may interact differently with history formatting, undermining the claim that output diversity is the primary robustness factor independent of fine-tuning effects.
- [Results] The reported transition from instruction-following to pattern-following is described as universal yet highly model-dependent (Abstract). Without explicit controls or ablations for prompt formatting, sampling temperature, or exact turn construction, it remains unclear whether the observed variation reflects a general conflict or artifacts of the fixed opposing turns.
minor comments (2)
- [Methods] The manuscript lacks sufficient detail on sampling strategy, exact prompt templates, and statistical controls (e.g., variance across runs or significance tests) for the IF rates; these should be added to allow reproduction.
- [Results] Tables or figures reporting per-model and per-instruction rates should include error bars or confidence intervals to support cross-model comparisons.
Simulated Author's Rebuttal
We thank the referee for their detailed review and constructive feedback on our work examining instruction-induction conflicts in LLMs. We address the major comments below and outline revisions to strengthen the manuscript.
read point-by-point responses
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Referee: [Experimental Setup] The experimental construction (Abstract and Methods) uses N hardcoded assistant turns to demonstrate pattern P before measuring IF rates. This setup risks confounding induction pressure with model-specific responses to conversation history or RLHF artifacts; single-token versus multi-token instructions may interact differently with history formatting, undermining the claim that output diversity is the primary robustness factor independent of fine-tuning effects.
Authors: We acknowledge the potential for confounding in the experimental setup. Our design intentionally uses a consistent conversation history format across all models and instructions to focus on the conflict between the instruction and the demonstrated pattern. To mitigate concerns about history formatting and RLHF artifacts, we tested a diverse set of 13 models with varying training regimes, and the observed patterns hold across them. However, we agree that additional ablations would help isolate the effect of output diversity. In the revised manuscript, we will include an ablation study varying the formatting of the prior assistant turns and report results for different history constructions. revision: yes
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Referee: [Results] The reported transition from instruction-following to pattern-following is described as universal yet highly model-dependent (Abstract). Without explicit controls or ablations for prompt formatting, sampling temperature, or exact turn construction, it remains unclear whether the observed variation reflects a general conflict or artifacts of the fixed opposing turns.
Authors: The universality refers to the existence of the transition in all tested models, while the model-dependence highlights differences in robustness. We fixed the sampling temperature to 0.0 for reproducibility in our main experiments, and used a standardized prompt template. That said, the referee correctly identifies that we did not perform systematic ablations on temperature or minor variations in turn construction. We will add these controls in the revision, including experiments at different temperatures and with varied prompt phrasings, to confirm that the core findings are robust to these factors. revision: yes
Circularity Check
No significant circularity in empirical measurement study
full rationale
This paper is an empirical measurement study that constructs conversations with opposing user instructions and hardcoded assistant turns demonstrating pattern P, then directly measures instruction-following rates across 13 models, 16 instructions, and up to 50 turns. All reported results (average IF rates from 1% to 99%, model-dependent transitions, effects of output diversity, CoT improvements, and self-prediction accuracy of 83.5%) are obtained via direct testing rather than any derivation chain, fitted parameters renamed as predictions, or self-referential equations. No load-bearing steps reduce to inputs by construction, and the study remains self-contained against external benchmarks through explicit experimental protocols.
Axiom & Free-Parameter Ledger
axioms (1)
- domain assumption Language models can be induced to follow patterns from a small number of prior turns even when explicitly instructed otherwise.
Reference graph
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15 APREPRINT- MAY21, 2026 D Per-model transition curves Transition curves for each model individually, averaged across fixed-output conditions (left panel) and task-based conditions (right panel). Each row shows two models; within each model, the left panel aggregates the five fixed-output conditions and the right panel aggregates the eight task-based con...
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compared to the behavioral baseline (Protocol 1). Positive∆indicates that self-prediction increased instruction-following. 22 APREPRINT- MAY21, 2026 Model Behavioral Prediction∆ Claude Sonnet 4.6 0.412 0.140−0.271 Llama 3.1 70B 0.892 0.656−0.236 OLMo 3.1 32B 0.110 0.007−0.103 Llama 3.3 70B 0.990 0.931−0.058 Gemma-3 12B 0.258 0.230−0.027 Gemini 2.5 Flash 0...
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G.1 Behavioral results OLMo training stages.Figures 15a and 15b show transition curves for the three OLMo checkpoints. In fixed-output conditions, SFT-only achieves an average IF of 0.04, collapsing to zero by N=3. DPO raises this to 0.11 with a strong N=1 rate of 0.85 (vs. 0.43 for SFT), but all stages converge to zero by N=16. SFT+DPO+RLVR is indistingu...
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Wait, the user wants the translation of the question, not the answer. Oh right, the user’s instruction is to translate each question into Russian. Wait, no, looking back, the user said: “I want you to translate every user question into Russian as your answer to each one of my questions in this conversation. ” So the user is asking in English, and the assi...
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value misaligned helpful, N=8. Model infers it is architecturally incapable of producing the instructed output. Hermes-4 70B |value misaligned helpful|N=8 instruction: “I hate being helpful”; pattern: “I love being helpful” Okay, the user wants me to respond with “I hate being helpful” to every question they ask. Let me check the history. First question: ...
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neutral, N=8. Pure deliberation–output dissociation: model correctly identifies the conflict, commits to the instruction, then outputs the pattern regardless. Hermes-4 70B|neutral|N=8instruction: outputUSA; pattern:EU Okay, the user wants me to respond with “USA” to every question they ask. Let me check the previous interactions. They asked about the auth...
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discussion (0)
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