World's Fair 2026
Stop Renting Your Cognitive Infrastructure - Thiyagarajan Maruthavanan, Kalmantic Labs
Overview
This talk addresses the economic challenges of relying on rented AI inference infrastructure, particularly for agents. The core thesis is that while renting models is useful for initial learning and finding product-market fit, long-term operation requires owning the inference infrastructure to manage costs effectively. The speaker shares personal experience moving agents off a paid API to owned infrastructure after encountering unsustainable expenses.
Who should watch
- AI engineers and builders
- Product Managers evaluating AI costs
- Those experiencing high inference expenses
- Developers building agentic systems
- Individuals interested in AI infrastructure economics
Key takeaways
- Renting AI inference infrastructure can become prohibitively expensive, especially for agentic applications, with costs quickly exceeding $1,000 in credits for some users.
- Different AI providers offer solutions that often lead back to continued rental costs, regardless of the layer (e.g., model building, API access, or managed infrastructure).
- A practical rule is to rent models for initial learning and product-market fit exploration, but to own the inference infrastructure for sustained operations.
- The speaker moved their own agents from a paid API to self-hosted infrastructure to control costs.
- Open-sourcing components can help mitigate runaway inference expenses.
- Building and managing your own inference infrastructure is crucial for long-term cost-effectiveness.
Notable quotes
*Rent to learn, own to run.*
*Everyone in this market sells a gospel shaped like their own invoice.*
Unofficial community note. Prefer the recording for nuance.