The tools, on six things
AI evaluation tools for UPSC Mains on six features that decide whether the feedback helps, with what each costs.
| What you get | writeupsc | AI Mentor | UPSC AI | UPSC Answer Check | SuperKalam |
|---|---|---|---|---|---|
| Reads your handwritten pages | ✓ | ✓ | ✓ | ✓ | ✓ |
| Compares with real topper answers | ✓ | ✓ | ~ | ✗ | – |
| Model answer in topper style | ✓ | ✓ | ✓ | ✓ | ✓ |
| Draws a diagram for the answer | ✓ | ~ | ~ | – | – |
| Marks by dimension | ✓ | ✓ | ✓ | ✓ | ✓ |
| No score without a reference | ✓ | – | – | – | – |
✓ stated on the tool’s own page · ✗ the page says the opposite · ~ mentioned only in general terms · – not stated. Features checked on 21 September 2026, re-read on 18 October 2026.
What each one says about itself
| Tool | Marks against | On its own page |
|---|---|---|
| writeupsc | Real topper answers, closest questions | Reads photos of every page. Finds the closest questions in a bank of 5,901 real topper answers. Writes a model answer in the style of real toppers, with a diagram when the question needs one, and shows it beside yours. Marks structure, dimensions, arguments, examples, diagrams and conclusion separately. No reference, no score. |
| AI Mentor | Real topper scripts, side by side | Upload handwritten answer sheets as a PDF or image; it says your answer is “placed side-by-side against real UPSC toppers’ scripts” within 3 minutes and that “a full model answer” is generated for every question. Its public page is a JavaScript app; a diagram section appears only in the report screen of its app code, not in its marketing copy. |
| UPSC AI | Rubric + one topper copy | A fixed 50-30-10-10 rubric; gap analysis against one AIR 23 copy; topper model answers; claims 98% rubric correlation. |
| UPSC Answer Check | Per-question rubric | Writes a rubric for your question, marks content, structure, analysis and language, returns a model answer. |
| SuperKalam | Own criteria list | Relevance, structure, facts and examples, depth; handwritten answers accepted. |
What they cost
| Tool | Paid plans, as stated on 18 October 2026 |
|---|---|
| writeupsc | ₹39 for 5 evaluations (₹49 after 30 Oct 2026, once per account); a 30-day pass of 30 evaluations for ₹99 (₹249 after). One-time payments, no auto-renewal; refund if unused within 7 days. |
| AI Mentor | Monthly ₹599 (listed ₹699) for 250 credits, 30 days; quarterly ₹1,699 (₹2,099) for 750 credits; yearly ₹4,999 (₹7,188) for 2,400 credits. In its app one answer costs 1 credit and an Essay 3. Prices include 18% GST; auto-renewal may apply; its refund text is mixed (7-day requests in one place, “generally non-refundable” in another). |
| UPSC AI | Basic ₹699 a month (10 Mains evaluations, plus AI queries and MCQs); Pro ₹1,199 a month (50 evaluations, mentor support). Renews automatically; 7-day refund. Its evaluation page also offers packs from ₹299 for 10 evaluations. |
| UPSC Answer Check | ₹299 a month or ₹2,999 a year, unlimited Mains evaluations. No auto-renewal; 7-day money-back. |
| SuperKalam | Part of its full preparation subscription, not sold separately: ₹1,199 a month, ₹5,499 for 6 months or ₹7,499 for access until Mains 2027. No refunds on paid plans. |
Free tiers are compared on the free checker page.
Why writeupsc comes first
- It is the only one grounded in real topper answers. 5,901 of them, with every reference opening the booklet page. Others mark against a rubric.
- It reads the page you actually wrote, diagrams included, in English or Hindi.
- It names the change, not a rewrite. Where to write it, what to write, and how many toppers did it, so the fix carries to the next answer.
- It does not bluff. No close topper answer means no score.
Where others are ahead
- Volume: ExamDay allows 2 free evaluations a day and UPSC Answer Check 5 a month; writeupsc gives 1 free in total.
- Breadth: some tools cover state PCS exams or all 48 optionals; writeupsc covers GS1–4, Essay and the optionals in its bank.
How to pick
Write one real answer by hand, photograph it, and run it through two tools. If the feedback names a change you can act on tonight, with a topper answer beside it to prove the point, you have your tool.
See a real writeupsc evaluation before you decide. Every reference on it opens the topper’s booklet page.
Questions
Which AI tool is best for checking UPSC Mains answers?
On the six features that matter in Mains, writeupsc is the only one of nineteen options stating all six on its page. UPSC AI and UPSC Answer Check are the closest; both mark by dimension and give a model answer, neither compares your page with real topper answers or links a reference.
Are these rankings paid or sponsored?
No. Each mark comes from the tool’s own page, checked on 21 September 2026; prices and free tiers were re-read on 18 October 2026. writeupsc is built by the people who wrote this page, and every mark against it can be checked on the site.
Can I trust an AI score?
As a practice estimate, yes, if you can see what it was scored against. Prefer tools that show their references. Treat any tool claiming 98 or 99 percent accuracy with no method as marketing.
See how your own answer compares.
Photograph the sheet the way you wrote it. 1 free evaluation with a Google account, no card.