What’s the difference between Adobe Commerce Cloud Pro and Starter?

ACC Starter: Single AWS region, shared infrastructure, no Fastly Image Optimizer, max 4 envs, minimal SLA. Best for stores under $1M GMV. ACC Pro: Dedicated 3-node AWS cluster, Fastly Image Optimizer included, unlimited envs, 99.99% SLA, dedicated support. Best for stores over $1M GMV or with B2B / multi-region needs. Pro is roughly 4-6× Starter pricing but the SLA + Image Optimizer alone often justify it for serious stores.