Writing
Case studies, notes and essays on product, pricing, billing, startups and public policy.
Selected essays
Essays I published on UsagePricing and LookupTax.
- What would it take to build a tax provider in the age of AI?LookupTax ↗
- I accidentally built Karpathy's LLM wikiUsagePricing ↗
- The hyperscaler billing playbook for AIUsagePricing ↗
- Billing infrastructure for agentic commerceUsagePricing ↗
- LLM billing: from rate limits to creditsUsagePricing ↗
- The three mirrors of a productUsagePricing ↗
- The inevitable convergence: why every tax provider will become an e-invoicing providerLookupTax ↗
- AI token deflation and the bill shock paradoxUsagePricing ↗
Abhilash John Philip