Alumnx AI Build Day: TokenLens
Alumnx AI Build Day: Token Observability
🗓️ 30th May | ⏰ 11 AM – 12 PM 📍 Hybrid — Hyderabad + Online
Ever wondered what your AI inference actually costs?
When you upload a PDF into ChatGPT or Claude and ask a question — do you know how many tokens are being consumed? Do you know when it makes more sense to self-host an open source model like Gemma 4 versus calling a hosted API like Gemini Flash?
Most people building AI applications today don't have answers to these questions. That's an expensive blind spot.
What we are building
Participants from Alumnx AI Labs' Full Stack AI Engineers cohort and AI for Senior Leaders (SLP) program are building a Token Observability web application — live, in 48 hours.
The application will let you:
Upload a PDF and ask questions against it
See exactly how many tokens are consumed and what it costs — in ₹ and $
Compare full-context ingestion vs RAG-based retrieval
Understand when a self-hosted model beats a hosted API — and when it doesn't
What happens on 30th May
We demo the live, deployed application — built entirely by our cohort in 48 hours. You will see real token counts, real cost breakdowns, and a side-by-side comparison of Gemma 4 on an NVIDIA A10G GPU versus Gemini Flash API.
Who should attend
Developers building AI applications who want to understand and control their inference costs
Senior leaders evaluating AI investments and ROI
AI enthusiasts curious about how LLMs are priced and deployed
Anyone who wants to see what 48 hours of focused AI building looks like
Want to build with us?
We are open to contributions from AI enthusiasts who want to code alongside our team during the 48-hour build sprint. Limited spots available.
Organised by Alumnx AI Labs | Hyderabad Building hands-on AI practitioners — one cohort at a time.