Reads your actual assignment prompt and document
Works from the brief and the draft, not a pasted excerpt.
Write It
ChatGPTIf you paste it
Grammarly
QuillBot
Jenni AI
Notion AI
Roundup
6 best AI assignment helpers for students
An assignment is a document with a deadline and a rubric. Most AI tools help with one paragraph of it. These six, ranked by how much of the actual assignment they cover.
Write It teamUpdated 7 min read
An assignment has a shape: read the prompt, work out what it is actually asking, find support, draft, revise, cite, format, submit. Most tools marketed as "assignment helpers" handle exactly one of those steps and leave the other seven to you.
This list is ordered by how much of that sequence each tool actually covers, and where each one is genuinely the best pick.
What each one covers
| Feature | Write It | ChatGPT | Grammarly | QuillBot | Jenni AI | Notion AI |
|---|---|---|---|---|---|---|
| Reads your actual assignment prompt and documentWorks from the brief and the draft, not a pasted excerpt. | If you paste it | |||||
| Plans and outlinesTurns a prompt into a structure you can write from. | ||||||
| Drafts section by sectionMulti-step generation with continuity across sections. | Agent Mode | |||||
| Finds sources and cites themSource discovery plus a formatted bibliography. | Generator only | |||||
| Grammar and clarity checkingUnderlines problems as you write. | ||||||
| Works inside Google DocsOperates on the document you submit. | Via extension | |||||
| Puts text in as typing, not a pasteVersion history reflects writing. | ||||||
| Free tierUsable without paying. |
Plans and outlines
Turns a prompt into a structure you can write from.
Write It
ChatGPT
Grammarly
QuillBot
Jenni AI
Notion AI
Drafts section by section
Multi-step generation with continuity across sections.
Write ItAgent Mode
ChatGPT
Grammarly
QuillBot
Jenni AI
Notion AI
Finds sources and cites them
Source discovery plus a formatted bibliography.
Write It
ChatGPT
Grammarly
QuillBotGenerator only
Jenni AI
Notion AI
Grammar and clarity checking
Underlines problems as you write.
Write It
ChatGPT
Grammarly
QuillBot
Jenni AI
Notion AI
Works inside Google Docs
Operates on the document you submit.
Write It
ChatGPT
GrammarlyVia extension
QuillBot
Jenni AI
Notion AI
Puts text in as typing, not a paste
Version history reflects writing.
Write It
ChatGPT
Grammarly
QuillBot
Jenni AI
Notion AI
Free tier
Usable without paying.
Write It
ChatGPT
Grammarly
QuillBot
Jenni AI
Notion AI
Checked August 2026. Confirm anything that decides your choice on the vendor’s own site.
1. Write It
Write It runs as a Chrome extension inside Google Docs, which means it reads the assignment you have open and works on it in place. That is the difference between a tool that helps you produce text and a tool that helps you finish an assignment.
Apollo Agent Mode takes the prompt and works through it in phases — outline, draft each section holding to your tone and rubric constraints, then revise — and shows you the full draft for editing before anything is written into the document. Research Mode handles sources and the Works Cited. The Writing Assistant covers grammar, clarity, conciseness, tone, and repetition as you type. And the auto typer enters text keystroke by keystroke, so the document’s revision history reflects writing rather than a single paste.
Key features of Write It
- Reads the document. Works from your actual prompt and draft, not a pasted fragment.
- Apollo Agent Mode. Outline, draft, revise, with a review step before anything lands in the doc.
- Research Mode. Source discovery, a per-project library, and a formatted Works Cited in MLA 9, APA 7, Chicago, or IEEE.
- Writing Assistant. Live underlines for grammar, clarity, tone, repetition, and passive voice.
- AI Detector. Shows which paragraphs still read as machine-written so you can fix them first.
- Highlight Mode. Select any passage and get a direct edit on that selection.
- Also runs in Word on the web. Plus Google Slides with a lighter feature set.
Pros and cons of Write It
Pros
- Covers more of the assignment sequence than anything else here
- The only one that operates on the document you actually submit
- Research and citations included rather than a separate subscription
- Review step means you edit the draft before it enters the doc
- Free tier, no card required
Cons
- Browser only, no desktop or mobile app
- Proofreading is not as deep as Grammarly’s
- Agent runs consume tokens quickly on the free tier
- Writing assignments only — no help with problem sets
Work on the assignment where it lives
Plan, draft, research, cite, and check inside your Google Doc.
2. ChatGPT
The highest-value use of ChatGPT on an assignment happens before you write anything. Paste the prompt and ask what it is really asking for, what a top-band answer would have to do, and what the strongest objection to your thesis is. That is fifteen minutes that changes the whole draft.
Where it works less well is the writing itself. It has no access to your document, so everything comes back through the clipboard, which flattens formatting and leaves a single-paste revision history.
Key features of ChatGPT
- Prompt interrogation. Unpacks what a rubric is actually asking for.
- Counterargument generation. The best cheap way to pressure-test a thesis.
- Any subject. Not restricted to writing tasks.
- Image input. Photograph a handout or rubric and ask about it.
Pros and cons of ChatGPT
Pros
- The strongest general model, by a distance
- Excellent at pressure-testing an argument before you commit to it
Cons
- No access to your document — everything is copy-paste
- Citations it produces are often unverifiable or invented
- Whole-assignment output is fluent and empty, which graders notice
- A pasted essay is visible in Google Docs version history
3. Grammarly
For the final pass, Grammarly is still the best. More than a decade on one problem shows: it catches subtler issues, explains why something is wrong instead of just flagging it, and handles tone and formality with real nuance. It also runs in desktop apps and on mobile, which nothing else here does.
Key features of Grammarly
- Deep grammar and style engine. The most mature in this group.
- Tone detection. Flags register that does not fit the assignment.
- Works everywhere. Browser, desktop apps, mobile keyboard.
- Plagiarism checking. On the paid tier.
Pros and cons of Grammarly
Pros
- Best proofreading available, and we would not pretend otherwise
- The only tool here that follows you outside the browser
Cons
- Reacts to text you already wrote — no help producing it
- No source discovery or bibliography building
- Best suggestions are behind the paid tier
- Cannot help with structure or argument, which is where most marks go
4. QuillBot
The most refined dedicated rewriter, with genuine control over how far a rewrite departs from the original — which matters when you need meaning preserved precisely. It bundles a summarizer, grammar checker, citation generator, and plagiarism check.
Pros and cons of QuillBot
Pros
- Best control over rewrite aggressiveness of anything here
- Several genuinely useful utilities in one place
Cons
- Primarily a web app, so formatted documents need repair after a round trip
- Rewrites text you supply — no help with a blank page
- No source discovery
- Rewriting an uncited source is still plagiarism, and nothing in the product says so
5. Jenni AI
A purpose-built academic editor with inline autocomplete tuned for scholarly register and citation handling built in rather than bolted on. If you are happy drafting in a dedicated environment, it does that job properly.
Pros and cons of Jenni AI
Pros
- Best inline academic autocomplete in this group
- Citation integration designed for academic work
Cons
- Its own editor, so submitting to Google Docs means an export step
- Exports frequently break citation spacing and heading styles
- A migrated document leaves a single-paste revision history
- Free tier is limited
6. Notion AI
Strong at the stage before writing — organizing readings, planning a project, searching across notes you already took. Weak at the stage where the assignment actually gets produced, unless you are willing to move the finished thing into a Doc at the end.
Pros and cons of Notion AI
Pros
- Excellent for planning and organizing a multi-week assignment
- Searches across your own accumulated notes
Cons
- Assignments do not usually live in Notion
- The handoff to a Doc flattens formatting
- No citation formatting or source discovery
- AI features are paid on top of the workspace
The step everyone skips
Before any tool: read the rubric, not just the prompt. The rubric tells you what is actually being graded, which is often not what the prompt emphasizes. Most assignments lose marks on criteria the student never read.
Read the rubric and write down the bands
What separates a top answer from a middling one, in your own words.
State your answer in one sentence
Before any drafting. If you cannot, that is the real blocker.
Outline as claims, not topics
"Policy explains the difference" beats "background on the drought".
Draft badly, straight through
Editing while drafting roughly triples the time.
Revise in passes
Structure, then evidence, then sentences, then mechanics — in that order.
Finish the assignment where you started it
Install Write It free — plan, draft, research, cite, and proofread inside Google Docs.
Frequently asked questions
What is the best AI tool for assignments?
Write It covers the most of the sequence and is the only one that works inside the document you submit. For proofreading alone, Grammarly is better. Most students use one of each.
Can AI write my whole assignment?
It can produce something that reads fluently and says very little, which is a grading problem before it is a detection problem. It is also prohibited essentially everywhere. Use it to get unstuck and to check your work, and keep the argument yours.
Will my teacher know I used AI?
Often, and usually not from a detector. Generated prose shares recognizable habits — even sentence lengths, stock transitions, confident vagueness, no specific engagement with the set text — and teachers who have read your earlier work notice a change in voice.
How much does Write It cost?
Write It is free to start with 5,000 tokens at signup. Plus is $10 a month or $96 a year and includes 100,000 tokens a month. Premium is $15 a month or $144 a year and includes 200,000 tokens a month. Unused tokens roll over on both paid plans.
Does Write It work outside Google Docs?
Write It runs in Google Docs with the full toolkit, in Microsoft Word on the web, and in Google Slides with a lighter feature set.