AI / Claude Models Basics Interview Questions
What platforms and cloud providers is Claude available on?
Claude is available through multiple channels, each with its own model IDs, endpoint behaviour, and pricing structure.
| Platform | Best for | Model ID format |
|---|---|---|
| Claude API (direct) | Developers building directly with Anthropic | claude-opus-4-8, claude-sonnet-5, etc. |
| claude.ai | Consumer and business chat (Free, Pro, Team, Enterprise, Max) | Model selected in UI |
| Amazon Bedrock | AWS-native teams — data stays in AWS region | anthropic.claude-opus-4-83 |
| Claude Platform on AWS | Same API shape as Claude API but on AWS infrastructure | claude-opus-4-8 (same as direct API) |
| Google Cloud Vertex AI | GCP-native teams | claude-opus-4-8 (same IDs, regional variants) |
| Microsoft Foundry | Azure-native teams | claude-sonnet-5, claude-fable-5, etc. |
Important distinctions:
- Amazon Bedrock and Claude Platform on AWS are different products with different model ID formats and lifecycle policies
- Claude Platform on AWS uses the same model IDs as the direct Claude API and follows Anthropic's own deprecation schedule
- Amazon Bedrock uses its own model ID format and sets its own retirement schedules
- Starting with Sonnet 4.5, Bedrock offers global endpoints (dynamic routing) and regional endpoints (data sovereignty)
Which platform uses the same model IDs as the direct Claude API and follows Anthropic's own deprecation schedule?
What is the Amazon Bedrock model ID format for Claude models?
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