Stop Renting Your Cognitive Infrastructure - Thiyagarajan Maruthavanan, Kalmantic Labs
Jul 18, 2026 · 7:52
Thiyagarajan Maruthavanan of Kalmantic Labs argues that AI teams should stop renting inference from providers like Anthropic and build their own infrastructure, coining "rent to learn, own to earn." He recounts his app UltraSuno costing hundreds of thousands of dollars in inference, a stolen key hitting $10,000, and moving to his own DGX Sparks hardware. Three enterprises—a fund, hospital, and tax practice—each hit walls with renting: control, audit redlining, and reproducibility. He open-sourced JustTokenMax (benchmarked better than Netflix's Headroom) and wrote the book "Peak Inference" on building your own inference infra. He notes the market's conflicting pitches (Jensen's token factory, Nadella's unmetered, NeoClouds' endpoints) but concludes owning is essential post-PMF.
