AskYourPDFFree plan
Paid from
$14.99 a month
View plans and limitsUpdated 4 September 2026 · Independent comparison
AskYourPDF vs ChatGPT deep research:
which should you use?
AskYourPDF and ChatGPT deep research, side by side. Find the one that fits what you need to do.
Find your best fitThe 30-second answer
AskYourPDF straightforward document chat with citation back to the page, and it handles long PDFs without the usual truncation.
ChatGPT deep research long autonomous research runs that produce a cited write-up.
Pricing, simplified
Start free. Upgrade when you need more.
ChatGPT deep researchFree plan
Paid from
$20 a month
View plans and limitsThe 30-second comparison
If you only read one section, make it this one. Rows where both sides say the same thing are left out — the point is where they differ. Where each row came from is listed underneath.
| Category | AskYourPDF | ChatGPT deep research | Better fit |
|---|---|---|---|
| What it's built for | Straightforward document chat with citation back to the page, and it handles long PDFs without the usual truncation. | Long autonomous research runs that produce a cited write-up. Useful for scoping a topic before you commit to reading. | Tie |
| Free plan | Yes. Free, but tightly capped: 1 document a day, 100 pages per document and a 15MB upload limit | Yes. A small number of deep research runs on the free ChatGPT tier | Tie |
| Cheapest way to pay | $14.99 a month. | $20 a month. | AskYourPDF |
| What the paid tiers cost |
|
| Tie |
| What to watch out for | A thin layer over a general model, so it inherits that model’s habits. Little here that a general assistant with file upload does not also do. The free tier allows one document a day, so it is a taster rather than a working allowance. | Web-first rather than database-first. Verify every citation before it enters a bibliography. There is no separate deep research plan: more runs come with a ChatGPT subscription. | Tie |
| Who it is usually for | students, working professionals, researchers | students, researchers, working professionals | Tie |
| Sources you can check | Answers arrive without sources attached. | Answers carry sources you can open and check. | ChatGPT deep research |
| Made by | ProtonLabs Technology — Birmingham, GB. | OpenAI — San Francisco, US. | Tie |
Neither leads on the 8 rows above: 1 each. The job decides it, not the table.
AskYourPDF or ChatGPT deep research
Neither leads on the rows above — the job decides it.
✓ Straightforward document chat with citation back to the page, and it handles long PDFs without the usual truncation.
✓ You want the cheaper paid plan, $14.99 against $20
✓ Free, but tightly capped: 1 document a day, 100 pages per document and a 15MB upload limit
✓ It is aimed at students, working professionals, researchers
Long autonomous research runs that produce a cited write-up.
ChatGPT deep research is the better answer when the job is what it was built for rather than what the pick above does broadly.
✓ Straightforward document chat with citation back to the page, and it handles long PDFs without the usual truncation.
✓ You want the cheaper paid plan, $14.99 against $20
✓ Free, but tightly capped: 1 document a day, 100 pages per document and a 15MB upload limit
✓ It is aimed at students, working professionals, researchers
How we know
Every row that separated these two, and where it came from. Nothing here is a hands-on test — if a line rests on a vendor’s own pricing page, it says so and links it.
| Row | Favours | Weight | Where it came from |
|---|---|---|---|
| Cheapest way to pay | AskYourPDF | Everything else | From each vendor’s own pricing page. Dates and pages are listed below. |
| Sources you can check | ChatGPT deep research | How well it does the job | From this site’s own catalogue record for each product — compiled by hand, not imported. How a product gets listed |
The prices
AskYourPDF. Read by hand off askyourpdf.com on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. askyourpdf.com/pricing
ChatGPT deep research. Read by hand off chatgpt.com on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. chatgpt.com
The ratings
The category these two share. Search, Research & Academics — both are listed there in the catalogue, and the fit recorded against each listing is a judgement made here, by hand.
The nine-category grid below. Derived from what each product is listed for, by one script, once per build — so the same pair always reads the same. It is a derivation, not a review.
What this is not
Neither product was run side by side to produce this page. Nobody was paid to appear on it and nothing here is ranked by commission.
To put the same question to both and read the answers yourself, run them side by side — that is a live test, and this is not.
Choose based on what you’re doing
All ten categories, including the ones where neither of these is the answer. These ratings are derived from what each product is listed for, not from running it — a rating here is a reading of the record, and the record is linked.
01
General-Purpose AI Assistants
Questions, brainstorming, explanations, everyday tasks, decision-making, general advice.
AskYourPDF
Not a good fitChatGPT deep research
Not a good fitBest choice: Neither
02
Search, Research & Academics
Web research, deep research, books, academic papers, citations, news, fact-checking.
AskYourPDF
Good fitChatGPT deep research
Good fitBest choice: Tie
03
Writing, Communication & Language
Emails, reports, essays, editing, summarizing, translation, presentations.
AskYourPDF
Not a good fitChatGPT deep research
Not a good fitBest choice: Neither
04
Coding, Data & Technical Work
Programming, debugging, data analysis, spreadsheets, math, engineering, technical research.
AskYourPDF
Bad fitChatGPT deep research
Bad fitBest choice: Neither
05
Business, Finance & Professional Work
Business strategy, investing, market research, legal, sales, HR, accounting, consulting.
AskYourPDF
Not a good fitChatGPT deep research
Not a good fitBest choice: Neither
06
Image & Design
Image generation, photo editing, logos, graphics, product design, advertising creatives.
AskYourPDF
Bad fitChatGPT deep research
Bad fitBest choice: Neither
07
Video
Video generation and editing, clipping, subtitles, avatars, animation and motion capture.
AskYourPDF
Bad fitChatGPT deep research
Bad fitBest choice: Neither
08
Audio, Voice & Music
Voice generation, transcription, music, dubbing, sound cleanup and podcast production.
AskYourPDF
Bad fitChatGPT deep research
Bad fitBest choice: Neither
09
Marketing & Content Creation
Social media, SEO, advertising, copywriting, content ideas, scripts, brand development.
AskYourPDF
Bad fitChatGPT deep research
Bad fitBest choice: Neither
10
Productivity, Automation & Personal Life
AI agents, workflows, scheduling, meetings, organization, shopping, travel, personal finance.
AskYourPDF
Not a good fitChatGPT deep research
Not a good fitBest choice: Neither
Straightforward document chat with citation back to the page, and it handles long PDFs without the usual truncation.
by ProtonLabs TechnologyStraightforward document chat with citation back to the page, and it handles long PDFs without the usual truncation.
You want the cheaper paid plan, $14.99 against $20
Free, but tightly capped: 1 document a day, 100 pages per document and a 15MB upload limit
It is aimed at students, working professionals, researchers
Long autonomous research runs that produce a cited write-up.
by OpenAILong autonomous research runs that produce a cited write-up.
You need sources you can open and check
Useful for scoping a topic before you commit to reading.
A small number of deep research runs on the free ChatGPT tier
Pricing, simplified
The plans people actually compare, read from each vendor’s own page.
PricingSimple, up-to-date plan overview.
AskYourPDFby ProtonLabs Technology
ChatGPT deep researchby OpenAIFree version
AskYourPDF
Yes — Free plan availableFree, but tightly capped: 1 document a day, 100 pages per document and a 15MB upload limit
ChatGPT deep research
Yes — Free plan availableA small number of deep research runs on the free ChatGPT tier
Individual plans
AskYourPDF
Premium
$14.99 / month$11.99 / month (annual)
Pro
$19.99 / month$14.99 / month (annual)
ChatGPT deep research
ChatGPT Plus
$20 / month
ChatGPT Pro
$100 / monthor $200 / month
Business plans
AskYourPDFNot sold to teams
ChatGPT deep research
From $25 / user / monthFrom $20 / user / month (annual)ChatGPT Business
Enterprise
AskYourPDF
Custom pricing
ChatGPT deep researchNot published
View full details
AskYourPDFView AskYourPDF pricing
ChatGPT deep researchView ChatGPT deep research pricing
Tell us what you use AI for
Pick your main job and the verdict below changes to match. Every answer is on the page already, so this works as a reader, not a lookup.
The verdict for that job
Evenly matched
Close call. Both cover search, research & academics at the same level; both have a free plan you can start on; AskYourPDF is cheaper to start paying for, $14.99 against $20.
8 rows compared
Frequently asked questions
Is AskYourPDF or ChatGPT deep research better?
Neither leads on the 8 rows above: 1 each. The job decides it, not the table. both have a free plan you can start on; AskYourPDF is cheaper to start paying for, $14.99 against $20. AskYourPDF: Straightforward document chat with citation back to the page, and it handles long PDFs without the usual truncation. ChatGPT deep research: Long autonomous research runs that produce a cited write-up. Useful for scoping a topic before you commit to reading.
Is AskYourPDF or ChatGPT deep research cheaper?
AskYourPDF — paid plans start at $14.99 a month against $20 a month.
Do AskYourPDF and ChatGPT deep research both have free plans?
Yes. AskYourPDF: Free, but tightly capped: 1 document a day, 100 pages per document and a 15MB upload limit. ChatGPT deep research: A small number of deep research runs on the free ChatGPT tier.
What should I watch out for?
AskYourPDF: A thin layer over a general model, so it inherits that model’s habits. Little here that a general assistant with file upload does not also do. The free tier allows one document a day, so it is a taster rather than a working allowance. ChatGPT deep research: Web-first rather than database-first. Verify every citation before it enters a bibliography. There is no separate deep research plan: more runs come with a ChatGPT subscription.
Read more
AskYourPDF
What it is for, who makes it, what it costs and what to use instead.
ChatGPT deep research
What it is for, who makes it, what it costs and what to use instead.
Best AI for Research
Web research, deep research, books, academic papers, citations, news, fact-checking.