Abstract

Write an abstract that says what you found

The abstract is the only part of your paper most people will read, and it's usually written in the last hour before submission. Give each sentence one job, put the result in with its number, and cut to the limit without cutting the finding.

Try it freeSee the steps

Free plan includes 100 AI Autocomplete / Ghost Text · 5,000 AI Writing Words · 100 AI Rewrites.

Abstract word budget

PartWordsJob
Background38Why the question matters
Aim22What you set out to find
Methods61Design, sample, analysis
Results84Main finding, with numbers
Conclusion41What it means

Illustrative budget: 246 words against a 250-word limit.

The problem

Why abstracts fall flat

Editors and reviewers see the same weaknesses every week.

No result

"The findings are discussed" tells the reader nothing. If the abstract doesn't contain the finding, most readers will never learn it.

Half of it is background

Three sentences on why the field matters, one on what you did. The proportions should be the other way round.

It doesn't match the paper

The abstract was written from an early draft, and the numbers or conclusions have changed since.

Over the limit

Submission systems cut or reject abstracts that run over. Trimming at the last minute tends to remove the wrong sentence.

Step by step

How to do it in LitraMind

Do this when the paper is finished, not before.

  1. Finish the paper first

    Open your completed manuscript in the editor. An abstract written before the results are final has to be rewritten anyway.

    About Write New Paper

  2. Pull one sentence from each section

    Write the single most important sentence from your introduction, methods, results and discussion. That's your skeleton, in your own words.

  3. Ask for a draft from your own document

    Use AI Write with your current document as context and ask for an abstract in the journal's format. Compare it with your skeleton; where they differ, trust the paper.

    About AI Write

  4. Put the numbers in

    Replace every vague phrase with the figure from your results: sample size, effect size, confidence interval or percentage. Check each one against the results section.

  5. Trim to the limit

    Select the abstract and use Trim. It removes filler such as "it is important to note that" before it touches content. Retry if it cuts something you need.

    About AI Rewrite

  6. Run a final language check

    AI Edit catches undefined abbreviations and tense slips. Abbreviations in an abstract need defining there, even if the paper defines them later.

    About AI Edit
Start step 1 free
The guide

What a good abstract contains

The format varies by journal. The content barely does.

One job per sentence

Most abstracts follow the same five moves. If you can label each of your sentences with one of them, the structure is sound.

The shares below are a guide for an empirical paper. The results should get the most space.

The five moves of an empirical abstract
MoveQuestion it answersRough share
BackgroundWhy does this matter?10–15%
AimWhat did you set out to find?10%
MethodsWhat did you do, and with whom?25%
ResultsWhat did you find?35%
ConclusionWhat does it mean?15–20%

Structured or unstructured

Structured abstracts use headings such as Background, Methods, Results and Conclusions, and are standard in medical and health journals. Unstructured abstracts are a single paragraph, and are common elsewhere.

Check the author guidelines for the format and the word limit. Limits of 150 to 250 words are typical, but they vary.

What to leave out

Citations, unless the journal allows them. Undefined abbreviations. Results that don't appear in the paper. Claims stronger than the discussion makes.

Also leave out the phrase "in this paper". The reader knows where they are.

Keywords and titles

Readers find papers through search, so use the terms they would type. Put the main ones in the title and the first two sentences. For the keyword list, choose terms that aren't already in the title, since indexes search both.

Written by the LitraMind team. Last reviewed .

In their words

What researchers and students say

“My abstracts tended to spend too much space on background. It helped me give the methods and results enough attention without making the abstract longer.”

Laura B•••PhD Researcher, Biomedical SciencesN••• University, United Kingdom

“It was especially useful when I needed to reduce a 400-word draft to a journal's 250-word limit without losing the actual findings.”

Ryan M•••Postdoctoral Fellow, Public HealthW••• M••• University, United States

“The structure suggestions helped make the abstract much easier to follow, particularly the transition from results to conclusion.”

Pooja K•••Research Scholar, BiotechnologyN••• Institute of B••• R•••, India

“I liked that I could compare a concise version with my original rather than simply accepting an automatically rewritten abstract.”

Anna V•••Doctoral Researcher, PsychologyR••• University, Germany

“It is useful for conference abstracts where every sentence has to justify its place.”

Julien M•••PhD Candidate, NeuroscienceP••• Institute of N•••, France

“I use it near the end of writing to check whether the abstract actually reflects what is in the final manuscript.”

Mei L•••Doctoral Candidate, EngineeringP••• Institute of T•••, Singapore
The tools

What this workflow uses

All of them live in the same editor, so you don't move text between apps.

AI Write

Prompt the AI with your document, your selection or your uploaded papers as context.

About AI Write

AI Rewrite

Seven rewrite modes for selected text: Paraphrase, Make Academic, Improve Fluency, Simplify, Trim, Change Tone and Synonyms.

About AI Rewrite

AI Edit

Grammar, tone, clarity and consistency suggestions that you accept or reject one at a time.

About AI Edit
Straight answer

What stays your job

An abstract is a promise about the paper. You have to keep it.

  • Checking the numbers. A drafted abstract can state a figure slightly wrong; compare every one with your results.
  • Deciding what the main finding is. If the paper has three results, you choose which one leads.
  • Knowing the journal's format. Word limits and headings come from the author guidelines.
Questions

Questions people ask

Short answers before you start. Plan limits are on the pricing page.

See plans and limits
Can AI write my abstract?
It can draft one from your finished paper, which is a reasonable start because the abstract only restates what's there. Check every number and claim against the manuscript, and make sure the emphasis is the one you want.
How long should an abstract be?
As long as the journal or conference allows. Limits of 150 to 250 words are typical for journal articles, and thesis abstracts often run to 300 or more. Follow the stated limit exactly.
Should I write the abstract first or last?
Last. A working summary at the start can help you plan, but the submitted abstract should be written from the finished paper so the two match.
Can I include citations in an abstract?
Usually not. Abstracts are often read on their own in databases, without the reference list. A few journals allow them; check the guidelines.
What's the difference between an abstract and an introduction?
The abstract summarizes the whole paper, results included. The introduction sets up the question and stops before the findings.
Keep going

Related use cases

All use cases

Journal manuscript preparation

Fix the things that get papers rejected before peer review: inconsistent terms, the wrong reference style, and an abstract that hides the finding.

Read the guide

Research paper introduction

Move from what's known to what's missing to what you did, in a page or two, with a source behind every claim.

Read the guide

Journal cover letter

Tell the editor what you found, why it suits their journal, and what they need to know, in under a page.

Read the guide

Get the abstract right before you press submit

Open your manuscript in LitraMind, draft the abstract from the paper itself, and trim it to the limit.

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