flâneur

tokens are getting more expensive - by Ethan Ding

ethanding.substack.com · 1,975 words · saved by 1 readers

note: i’m kinda tired of the “levered beta” metaphor, i have one more topic i want to cover on this topic related to cognition, and then i’ll go back to my normal writing imagine you start a company knowing that consumers won't pay more than $20/month. fine, you think, classic vc playbook - charge at cost, sacrifice margins for growth. you've done the math on cac, ltv, all that. but here's where it gets interesting: you've seen the a16z chart showing llm costs dropping 10x every year. so you think: i'll break even today at $20/month, and when models get 10x cheaper next year, boom - 90% margins. the losses are temporary. the profits are inevitable. it’s so simple a VC associate could understand it: year 1: break even at $20/month year 2: 90% margins as compute drops 10x year 3: yacht shopping it’s an understandable strategy: "the cost of LLM inference has dropped by a factor of 3 every 6 months, we’ll be fine” but after 18 months, margins are about as negative as they’ve ever been… win

note: i’m kinda tired of the “levered beta” metaphor, i have one more topic i want to cover on this topic related to cognition, and then i’ll go back to my normal writing imagine you start a company knowing that consumers won't pay more than $20/month. fine, you think, classic vc playbook - charge at cost, sacrifice margins for growth. you've done the math on cac, ltv, all that. but here's where it gets interesting: you've seen the a16z chart showing llm costs dropping 10x every year. so you think: i'll break even today at $20/month, and when models get 10x cheaper next year, boom - 90%…

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