Where each model is available: API, Bedrock, Vertex, Foundry
Who operates each platform, and whether this site's prices apply
| Platform | Operated by | This site's rates apply | Retirement dates |
|---|---|---|---|
| Claude API | Anthropic | Yes | Anthropic's |
| Claude Platform on AWS | Anthropic | Yes | Anthropic's |
| Microsoft Foundry | Anthropic | Yes | Anthropic's |
| Amazon Bedrock | Partner | No | Amazon's own |
| Google Cloud | Partner | No | Google's own |
How each platform bills
| Claude API | Billed by Anthropic in USD, monthly, on actual usage |
|---|---|
| Claude Platform on AWS | AWS Marketplace, metered hourly in Claude Consumption Units converted from standard API rates |
| Microsoft Foundry | Azure Marketplace, metered hourly in Claude Consumption Units converted from standard API rates |
| Amazon Bedrock | Invoiced by AWS at Bedrock's own prices |
| Google Cloud | Invoiced by Google at Vertex AI's own prices |
| Claude Consumption Unit | $0.01 each, on the marketplace invoice |
| Regional endpoints (partner clouds) | +10% over global, Claude 4.5 models and later |
Active models by platform
| Amazon Bedrock | Fable 5.1, Mythos 5.1, Opus 5.5, Opus 5, Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 5.5, Sonnet 5, Sonnet 4.6, Haiku 5.5, Haiku 4.5 |
|---|---|
| Claude API | Fable 5.1, Mythos 5.1, Fable 5, Mythos 5, Opus 5.5, Opus 5, Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 5.5, Sonnet 5, Sonnet 4.6, Haiku 5.5, Haiku 4.5, Opus 4.5 |
| Claude Platform on AWS | Fable 5.1, Opus 5.5, Opus 5, Sonnet 5.5, Haiku 5.5 |
| Google Cloud | Fable 5.1, Mythos 5.1, Opus 5.5, Opus 5, Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 5.5, Sonnet 5, Sonnet 4.6, Haiku 5.5, Haiku 4.5 |
| Microsoft Foundry | Fable 5.1, Mythos 5.1, Opus 5.5, Opus 5, Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 5.5, Sonnet 5, Sonnet 4.6, Haiku 5.5, Haiku 4.5 |
Two kinds of platform, and why the difference reaches your invoice
The platforms Claude runs on split cleanly into two groups. Anthropic operates the Claude API, Claude Platform on AWS and Microsoft Foundry: all three bill at Anthropic's standard API rates — the two marketplace platforms convert those rates into consumption units on your AWS or Azure invoice — and all three follow Anthropic's model-retirement dates. Amazon Bedrock and Google Cloud are operated by the cloud providers themselves, who set their own prices and their own retirement schedules. The first table above states that split per platform; it decides whether the prices on this site apply to you at all.
Claude Platform on AWS is not Bedrock
The newest platform is the easiest to misfile. Claude Platform on AWS is Anthropic's own API surface, reached through AWS sign-in, IAM and AWS Marketplace billing, with same-day parity with the first-party API and bare model ids. Bedrock is a separate, partner-operated service with its own feature subset and prefixed model ids. Choose between them on whether you need Anthropic's full API surface inside AWS or Bedrock's own ecosystem — they coexist.
Model availability is a separate question
A model on the Claude API is not automatically on every platform, and the availability table above lists a platform against a model only where our sources name it. The riskiest version of the gap is discovering it after committing to a platform for unrelated reasons — procurement, existing infrastructure, compliance — and only then finding a model the integration depends on is missing.
Capabilities differ too
The Batch API runs on the Claude API and Claude Platform on AWS but not on Bedrock, Google Cloud or Foundry. Fast mode is first-party only. See the Batch API isn't available on your platform for that gap in practice.
Fallback chains need the same check
A fallback chosen for availability deserves the same scrutiny as a primary choice. A fallback that isn't reachable on your platform only reveals itself the first time it fires — usually when something else has already gone wrong.
Related
See Claude API pricing for the rates the Anthropic-operated platforms bill at, and Claude model retirement dates for why a retired model can still answer on a partner cloud.
Verified 2026-09-30 against Anthropic's pricing and model-deprecation pages, and the claude-api skill's platform-availability table (canonical: https://platform.claude.com/docs/en/about-claude/pricing, https://platform.claude.com/docs/en/about-claude/model-deprecations).Could not confirm: Claude Platform on AWS offers same-day parity with the Claude API, but our sources name specific models there only for the newest releases, so the per-model table lists it only where it is named.
Verified 2026-09-30 against claude-api skill — shared/models.md, model-migration.md + SKILL.md model table and Anthropic's pricing and model-deprecation pages (canonical: https://platform.claude.com/docs/en/about-claude/models/overview, https://platform.claude.com/docs/en/about-claude/pricing, https://platform.claude.com/docs/en/about-claude/model-deprecations).