LumiChats is a pay-per-day AI platform built by two Indian students who got tired of wasting money on monthly AI subscriptions they barely used outside exam season. The premise is simple: you pay ₹69 on the days you actually use AI, and nothing on the days you don't. No monthly commitment. No subscription inertia. No wasted money during semester breaks.
But what you get for that ₹69 is anything but simple. On a single day pass, you get access to 39+ premium AI models — including Claude Sonnet 4.6, GPT-5.2, Gemini 3 Pro, DeepSeek, Qwen, Mistral, and dozens more — with 5 million tokens of context, unlimited file uploads, and features like Study Mode, Quiz Generation, and Note Generation that are built specifically for students.
Who Built LumiChats and Why
LumiChats was co-founded by Aditya Kumar Jha and Shikhar Burman, two students who experienced firsthand how broken AI subscription pricing is for the Indian student market. They were paying ₹1,800–3,600 per month across multiple AI platforms — and realising that most of that money was being spent on days when they weren't studying at all.
The insight that drove LumiChats was not complex: most students use AI intensively for 8–12 days a month, during exams, assignments, and project deadlines. The other 18–22 days, the subscription sits idle. A model that charges only for active days would save the average student ₹12,000–₹16,000 per year. That's the origin story of LumiChats.
The Two Pricing Options Explained
LumiChats offers exactly two pricing options, deliberately kept simple. The first is the Day Pass at ₹69 per activated day. You open the app, activate your day, and you have full access until midnight. The second is the Monthly Unlimited plan at ₹1,199/month for students who use AI every single day and want the convenience of not thinking about activation.
| Usage Pattern | Monthly Subscription (₹1,800) | Details |
|---|---|---|
| 10 active days/month | ₹1,800 | ₹690 |
| 5 active days/month | ₹1,800 | ₹345 |
| 0 days (holiday month) | ₹1,800 | ₹0 |
| 18+ days/month (heavy user) | ₹1,800 | ₹1,199 (switch to unlimited) |
The 39+ AI Models: What They Are and Why They Matter
Most AI subscriptions lock you into a single provider. ChatGPT Plus gives you GPT-5.2. Claude Pro gives you Claude Sonnet 4.6. Gemini Advanced gives you Gemini 3 Pro. Each costs ₹1,500–3,000 per month and gives you access to exactly one company's models. LumiChats gives you all of them — plus dozens more — under one ₹69 day pass.
Top Models Available on LumiChats
- Claude Sonnet 4.6 — Best for coding, writing, nuanced analysis, and long documents.
- GPT-5.2 — Best for structured reasoning, mathematics, and multi-step problem solving.
- Gemini 3 Pro — Best for large context windows, real-time data, and Google integrations.
- DeepSeek — Exceptional for technical and coding tasks at near-zero cost per token.
- Qwen — Strong multilingual support including Hindi and other Indian languages.
- Mistral — Fast, efficient, great for quick explanations and iterative drafts.
- Llama 3 — Open-source powerhouse, excellent for general academic work.
Being able to switch models mid-session without changing tabs or paying extra subscriptions is one of the most underrated advantages of LumiChats. You start an essay brainstorm in GPT-5.2, switch to Claude Sonnet 4.6 for the writing, and use Gemini to pull in current statistics — all within the same day pass.
Study Mode: The Feature That Changes How You Prepare for Exams
Standard AI chat is useful, but it has a critical flaw for academic work: it can confidently produce answers that don't match your course material. Your textbook might define a concept differently from how GPT-5.2 explains it. Your professor's notation might differ from the AI's default. Study Mode fixes this by pinning the AI to your uploaded document.
When you activate Study Mode on LumiChats, you upload your textbook chapter, lecture slides, or study notes. You can specify a page range — say, pages 30–60 for an upcoming exam. Every answer the AI gives is drawn exclusively from those pages, and every response cites the exact page number it came from. No hallucinations. No off-syllabus tangents. Just your material, explained clearly.
How Study Mode Handles Different File Types
- PDF textbooks — Upload any PDF, set page range, and receive page-cited answers.
- Lecture slides — Upload .pptx or PDF exports of slides for concept-level Q&A.
- Handwritten notes (photos) — Upload images of your notes for visual content processing.
- Research papers — Upload journal PDFs for section-specific summarisation and Q&A.
- Previous year question papers — Upload exam papers to generate targeted practice.
Quiz Generation: Active Recall Without the Effort
Active recall — testing yourself on material rather than re-reading it — is one of the most evidence-backed study techniques in educational psychology. LumiChats' Quiz Generation feature makes active recall effortless. You specify a page range from your uploaded document, and the AI generates a set of questions — multiple choice, short answer, and conceptual — drawn exclusively from that content.
This means your quiz is aligned with your exact syllabus, not some generic version of the topic. A quiz on pages 45–60 of your biochemistry textbook will test you on exactly what your professor assigned, using the same terminology and definitions. This level of precision is impossible with generic AI chat and unique to document-grounded tools like LumiChats.
Pro Tip: Run a 10-question quiz from your lecture notes before every class. It takes 2 minutes and makes you 3–4x more likely to retain the material during the actual lecture.
Note Generation: From Conversation to Structured Study Notes
After a deep study session with LumiChats, you've asked questions, gotten page-cited answers, and worked through difficult concepts. The Note Generation feature takes that entire conversation and converts it into a clean, structured set of notes — with headings, key terms, definitions, and summaries organised for review. These aren't generic AI summaries; they're grounded in the specific document you were studying, which means they're accurate for your course.
The 5 Million Token Daily Limit: What It Means in Practice
5 million tokens per day sounds abstract. In practical terms, it means you can process an entire 400-page textbook, have 10 hours of back-and-forth study conversations, generate 20 quizzes, and create multiple sets of notes — all within a single day pass. Most students will never approach this limit, which is precisely the point. There's no throttling, no 'you've hit your message limit,' no degraded model quality after a certain number of requests. Your ₹69 buys you a full, unrestricted day.
Is LumiChats Right for You?
- You're a student who uses AI heavily during exams but barely during holidays — LumiChats will save you significant money.
- You want access to multiple AI models without paying for multiple subscriptions — LumiChats is the only platform offering this at ₹69/day.
- You need AI answers that are accurate to your specific textbook — Study Mode is designed for exactly this.
- You're a developer who works intensively for a few days on a project, then takes breaks — the day pass model matches this workflow perfectly.
- You use AI every single day without exception — the ₹1,199/month unlimited plan may suit you better than the day pass.