Two routes through an AWS account
AWS announced Claude Fable 5.2 availability on November 9 through Amazon Bedrock and Claude Platform on AWS. It describes the model as intended for demanding technical work; its capability statements are vendor claims, rather than Briefpixel benchmark results.
The two routes operate differently. AWS runs the Bedrock inference stack. On Claude Platform on AWS, Anthropic runs the model infrastructure while AWS supplies authentication, access controls and Marketplace billing integration. AWS documentation cautions that data on the latter service may reside outside AWS.
Retention needs an explicit check
The Bedrock model card says using Fable 5.2 requires opting into AWS review through its Data Retention API. AWS’s abuse-detection documentation says Fable inputs and outputs can be kept for up to 30 days, with flagged traffic potentially reviewed by AWS staff.
The same documentation provides a zero-retention exception through June 30, 2027 for customers eligible for Enterprise Frontier Safeguards. Eligibility should be confirmed for the actual account. On Claude Platform on AWS, documentation points to first-party Claude API retention rules and says zero retention is available by request. These statements do not establish universal zero retention.
What developers can check before migrating
The Bedrock card lists a one-million-token context window and up to 128,000 output tokens. Its inference profiles distinguish geographic routing from global routing; global access is not a promise that requests stay in the user’s country.
Check the chosen service’s account access, model ID, region, retention terms and current pricing before sending a workload. No free-use entitlement or identical settings across the two platforms is established by the launch announcement.
