Side by side

PaperDraft vs PDF-GPT

Both stand on ai pdf assistants. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

PaperDraft

Free plan Web

Choose PaperDraft if you want academic drafting, document questions and citation tools in one web workspace. The free plan has monthly usage limits; higher allowances are available with Personal Plus at £150 per year or Personal Pro at £360 per year.

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PDF-GPT

Free plan APILinuxSelf-hosted+1

PDF-GPT provides a documented open-source route to PDF chat with semantic retrieval and page references. Its API and deployment options suit technical users, while the key requirement and setup details matter for implementation.

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The facts

	PaperDraft	PDF-GPT
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Web	API, Linux, Self-hosted, Web
Lowest paid plan	Personal Plus: £150 a year	Not published
Plans published	3	None
Maker	Not published	Not published
Website	paperdraft.org	github.com
On ai pdf assistants	#15 of 27	#19 of 27

PaperDraft: what it does well

Creates outlines and drafts from topics or uploaded references.
Answers questions about PDF and DOCX files with passage references.
Searches Crossref and academic databases for citations.
Exports finished papers as DOCX or PDF.
Free plan includes monthly writing and research allowances.

What to know first

Free plan limits writing, rewrites, file questions and checks each month.
Paid Personal Plus costs £150 per year.
The listed access platform is web.

PDF-GPT: what it does well

Accepts PDF uploads or URLs
Semantic search over document chunks
Answers can include page citations
Local Gradio playground documented
MIT-licensed open source

What to know first

Requires an OpenAI API key
Runtime encoder download is 915 MB
Maintainer seeks volunteer contributors
Setup involves deployment tooling

Alternatives to PaperDraft Alternatives to PDF-GPT The whole list