Anthropic Fable 5.1 Appears to Have Already Entered the AWS Backend: the model ID changes from 400 to 404
Observation Beating AI News, Amazon Bedrock for the suspected Fable 5.1 model ID (the name of the model specified in the API) begins returning 404 "Model not found". Randomly filled model names still return 400, while Fable 5.1 changes to 404. According to AWS error code definitions, this indicates that Fable 5.1 has already entered the Bedrock backend, and rollout preparation is under way.
Observation Beating AI News, Amazon Bedrock for the suspected Fable 5.1 model ID (the name of the model specified in the API) begins returning 404 "Model not found". Randomly filled model names still return 400, while Fable 5.1 changes to 404. According to AWS error code definitions, this indicates that Fable 5.1 has already entered the Bedrock backend, and rollout preparation is under way.