OpenAI GPT-5.6 Sol, Terra, and Luna go GA on Amazon Bedrock

AWS says OpenAI GPT-5.6 Sol, Terra, and Luna are generally available on Amazon Bedrock through a dedicated bedrock-mantle endpoint. Enterprises can use the models inside existing AWS billing, IAM, and security controls.
Key takeaway
Putting frontier OpenAI variants on Bedrock matters less as a new model drop than as a procurement and compliance path: teams can adopt GPT-5.6 capabilities without leaving AWS identity, spend, and governance tooling.
Context
Amazon Web Services published a getting-started guide stating that OpenAI GPT-5.6 Sol, Terra, and Luna are generally available on Amazon Bedrock. Access is described as going through a dedicated bedrock-mantle endpoint rather than only the usual OpenAI API surface.
For operators, the practical change is distribution: the same AWS account controls used for other Bedrock models can now cover these OpenAI offerings, which simplifies enterprise rollout where cloud-native security and billing already constrain vendor choice.