Gross margins, GPUs, and the future of finance — this one’s for the metrics nerds. CJ sits down with Sarah Wang, General Partner at Andreessen Horowitz, to talk about what happens when the traditional SaaS playbook collides with AI. Sarah shares how legacy benchmarks like payback period and burn multiple start to break down in a world where compute, not headcount, drives costs. She explains why sky-high gross margins can actually be an orange flag, how finance leaders can think about resource allocation between engineers and GPUs, and why the most valuable finance teams today are deeply operational. They also unpack what it’s like partnering with AI-native founders, the evolution of pricing models as LLM costs drop, and whether we’ll see a private trillion-dollar company anytime soon.

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LINKS:

on LinkedIn: https://www.linkedin.com/in/sarah-wang-59b96a7/

Company: https://a16z.com/

CJ on X (@cjgustafson222): https://x.com/cjgustafson222

Mostly metrics: https://www.mostlymetrics.com

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TIMESTAMPS:

(00:00:00 ) Preview and Intro

(00:02:40 ) Sponsors – Fidelity Private Shares, Mercury, RightRev

(00:05:50 ) Sarah Joins the Show

(00:06:06 ) The Future of Excel in the Age of AI

(00:08:24 ) Why Gross Margins Don’t Tell the Whole Story

(00:10:42 ) When Sky-High Margins Are an Orange Flag

(00:12:57 ) Finance as a Strategic Lever in AI Companies

(00:15:04 ) Sponsors – Tipalti, Aleph, Rillet

(00:17:22 ) Partnering with AI-Native Founders

(00:20:35 ) When Traditional SaaS Benchmarks Break Down

(00:23:58 ) Forecasting and Financial Planning for Compute Costs

(00:27:16 ) The Engineers-Versus-GPUs Trade-Off

(00:30:29 ) Resource Allocation and Infrastructure Efficiency

(00:33:47 ) How Pricing Models Evolve as LLM Costs Drop

(00:37:15 ) Circular Finance: When Big Tech Funds Its Own Vendors

(00:40:39 ) Metrics That Still Matter in AI-Driven Businesses

(00:44:12 ) The Evolving Role of Finance Leaders

(00:47:26 ) What “Operational Finance” Really Means

(00:50:58 ) Building Sustainable Efficiency in AI Companies

(00:54:03 ) Will We See a Private Trillion-Dollar Company?

(00:55:33 ) Outro

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SPONSORS:

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Mercury is business banking built for builders, giving founders and finance pros a financial stack that actually works together. From sending wires to tracking balances and approving payments, Mercury makes it simple to scale without friction. Join the 200,000+ entrepreneurs who trust Mercury and apply online in minutes at https://www.mercury.com

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#RunTheNumbersPodcast #FinanceLeadership #AIinBusiness #VentureCapital #SaaSMetrics

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