User math: $1 of Son costs 7x Opus on $20 plan, but tasks only 1.3x

alvelda · x · 2026-10-30

A user ran the numbers on Claude's $20 plans: measured as API-equivalent usage, $1 of Son costs 7x what $1 of Opus does, but measured by tasks completed the gap shrinks to just 1.3x. The takeaway: subscription value can't be judged on raw API-equivalent usage alone — model efficiency per task matters. Reposter alvelda says this matches their own experience.

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