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PRANJUL RATHOUR
PRANJUL RATHOUR

Posted on Originally published at pranjulrathour.scult.in

Setting up cost alerts for AI APIs before the bill surprises you

#shipping #cost #monitoring

Rate limiting protects your app's stability from a runaway loop. It doesn't protect your wallet — a steady, rate-limited stream of requests can still accumulate an unexpectedly large bill over days if nobody's watching the spend.

A minimal cost-alert setup

  • Most LLM providers let you set a spend limit or alert threshold directly in their billing dashboard — set this before you start building, not after the first bill.
  • For a multi-provider setup, track cumulative daily spend in your own logs and alert (even just an email or a log line you check) past a threshold you set.
  • Set the alert threshold meaningfully below your actual budget ceiling, so there's time to react before it's a problem.

The scenario this actually prevents

A demo that goes unexpectedly viral, or a bug that causes more calls than intended, can burn a month's budget in hours — a cost alert is the difference between noticing that in real time and finding out at the end of the billing cycle.

See rate-limiting your own AI API.

About Pranjul Rathour

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Requirements gathering, on stage

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Pranjul Rathour

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Pranjul Rathour — GenAI engineer, Kanpur

Pranjul Rathour is a GenAI engineer from Kanpur, India, and CTO at SCULT INDIA, currently shipping production RAG,
fine-tuning and agentic AI systems, mentoring 200+ students through TechVerse Enclave, and judging and speaking at
student hackathons across India. Updated 2026-09-11.

Reach out if you want to talk GenAI, book a campus session, or invite him to judge:

Pranjul Rathour · GenAI engineer, 3x hackathon winner, campus mentor. Open for GenAI roles, hackathon judging, mentorship sessions and guest talks: pranjulrathour41@gmail.com · Invite me to your campus
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