Challenge: Prompt optimization aims to find the best prompt to a large language model (LLM) for a given task.
Approach: They propose a method to optimize prompts for LLM-driven multi-step tasks using a human-designed feedback rule.
Outcome: The proposed method outperforms human-engineered prompts and several other prompt optimization methods on 11 representative multi-step tasks.

Similar Papers

PromptWizard: Optimizing Prompts via Task-Aware, Feedback-Driven Self-Evolution (2025.findings-acl)

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Challenge: Large language models (LLMs) have transformed AI across diverse domains, with prompting being central to their success in guiding model outputs.
Approach: They propose a framework for discrete prompt optimization that generates human-readable prompts using feedback-driven critique and synthesis process.
Outcome: The proposed framework improves prompt quality across 45 tasks and reduces API calls, token usage and overall cost.
Heuristic-based Search Algorithm in Automatic Instruction-focused Prompt Optimization: A Survey (2025.findings-acl)

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Challenge: Recent advances in Large Language Models (LLMs) have led to remarkable achievements across a variety of NLP tasks.
Approach: They propose a taxonomy of automatic prompt optimization methods that explore and improve prompts with minimal human oversight.
Outcome: The proposed methods can explore and improve prompts with minimal human oversight.
Prompterator: Iterate Efficiently towards More Effective Prompts (2023.emnlp-demo)

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Challenge: Large Language Models (LLMs) use a process known as prompting to solve arbitrary language tasks. prompting is a non-trivial task that requires experimentation in order to arrive at a prompt that solves a specific task.
Approach: They propose a tool that helps users iterate over different potential prompts and choose the best performing one based on human feedback.
Outcome: The proposed tool is open source and easily extensible.
iPrOp: Interactive Prompt Optimization for Large Language Models with a Human in the Loop (2025.acl-srw)

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Challenge: Prompt engineering has made significant contributions to the era of large language models, yet its effectiveness depends on the skills of a prompt author.
Approach: They propose a novel approach to prompt optimization that bridges manual prompt engineering and automatic prompt optimization by providing task-specific guidance.
Outcome: The proposed approach bridges manual prompt engineering and automatic prompt optimization while offering users the flexibility to assess evolving prompts.
promptolution: A Unified, Modular Framework for Prompt Optimization (2026.eacl-demo)

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Challenge: Existing implementations of prompt optimization are tied to unmaintained, isolated codebases or require invasive integration into application frameworks.
Approach: They propose a unified, modular open-source framework that integrates multiple contemporary discrete prompt optimizers within a single extensible system for both practitioners and researchers.
Outcome: The proposed framework integrates multiple discrete prompt optimizers, supports systematic and reproducible benchmarking, and returns framework-agnostic prompt strings, enabling seamless integration into existing LLM pipelines while remaining agnosite to the underlying model implementation.
A Systematic Survey of Automatic Prompt Optimization Techniques (2025.emnlp-main)

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Challenge: Recent advances in prompt engineering have created impediments for end users to adopt . however, prompt engineering remains an impedance due to rapid advances in models, tasks, and associated best practices.
Approach: They propose to define APO as a 5-part unifying framework and categorize all relevant works based on their salient features.
Outcome: The proposed framework aims to improve the performance of large language models on various tasks.
HPSS: Heuristic Prompting Strategy Search for LLM Evaluators (2025.findings-acl)

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Challenge: Existing efforts to optimize text evaluation prompts neglect the combinatorial impact of multiple factors, leading to insufficient optimization of the evaluation pipeline.
Approach: They propose to integrate 8 key factors for evaluation prompts and integrate them into an algorithm that searches for well-behaved prompting strategies for LLM evaluators.
Outcome: The proposed method outperforms existing methods and human-designed evaluation prompts on four evaluation tasks.
Local Prompt Optimization (2025.naacl-short)

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Challenge: Existing prompt optimization methods optimize prompts globally, but they lack the correct words for a task.
Approach: They propose a local prompt optimization process that integrates with any general automatic prompt engineering method to optimize a prompt over a large vocabulary.
Outcome: The proposed method improves on Math Reasoning and BIG-bench Hard benchmarks and shows that it can converge to the optimal prompt faster than global methods.
P3: Prompts Promote Prompting (2025.findings-acl)

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Challenge: Recent advances in prompt optimization have shown effectiveness of using multiple components to optimize models . however, such unilateral approaches often yield suboptimal results due to interdependent nature of these components.
Approach: They propose a self-improvement framework that optimizes both system and user prompts . they use offline optimized prompts to promote online prompt optimization .
Outcome: The proposed framework improves performance on general and reasoning tasks.
Bandit-Based Prompt Design Strategy Selection Improves Prompt Optimizers (2025.findings-acl)

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Challenge: Existing prompt optimization methods have found effective prompts, but they often differ from sophisticated prompts carefully designed by human experts.
Approach: They propose to integrate prompt design strategies into prompt optimization by using a Thompson sampling-based approach.
Outcome: The proposed method incorporates prompt design strategies into the prompt optimization process.

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