THE VERDICT
● Direct API if you are small, moving fast, or want new features the day they ship.
● Bedrock or Foundry if you already have cloud spend commitments, procurement requirements, or data residency rules.
● The thing people underestimate: new capabilities usually reach the direct API first.
What actually differs
| Direct API | Bedrock / Foundry |
|---|
| New features | First | Lag, sometimes weeks |
| Billing | Separate vendor invoice | Existing cloud bill |
| Procurement | New vendor to approve | Already approved |
| Data residency | Vendor terms | Your existing cloud controls |
| Who you call when it breaks | The model vendor | Your cloud account team |
PROCUREMENT IS NOT A SOFT FACTOR
A model that is 5 percent better but requires a new vendor approval, a security review and a separate invoice loses to one already inside an approved cloud relationship.
Better model quality alone does not win enterprise deals, which is exactly why every major model now ships on Bedrock and Foundry on day one.
Which one
| If you are... | Pick |
|---|
| A small team or solo | Direct. Simpler and features arrive first |
| Sitting on committed cloud spend | Bedrock or Foundry. It draws down commitment you have already made |
| Bound by data residency rules | Whichever cloud already satisfies them |
| Wanting day-one access to new primitives | Direct, and expect the others to catch up later |
FAQ
Is the model different through Bedrock?
It is the same model. What differs is billing, support, data handling and how quickly new features reach you.
Does routing through a cloud cost more?
Compare directly. Pricing varies by route and by negotiated commitment, and the cheapest sticker is not always the cheapest outcome if it draws down existing spend.
Which gets new features first?
The direct API, generally. Cloud marketplaces follow, sometimes by weeks.