OpenAI GPT-5.6 Sol, Terra, and Luna Models Now Available on Amazon Bedrock

OpenAI has made its GPT-5.6 model family—Sol, Terra, and Luna—generally available on Amazon Bedrock. The models are accessed through the OpenAI Responses API on the bedrock-mantle endpoint, and pricing matches OpenAI first-party rates, counting toward AWS commitments. Sol is designed for autonomous coding, security research, and deep multi-step reasoning; Terra balances performance and cost for everyday production workloads; Luna is optimized for high-volume, latency-sensitive tasks like classification and summarization. All models support text and image input, a 272K-token context window, and reasoning effort levels from none to max. They run under AWS IAM policies inside a user's VPC, with data not used for training and only retained for abuse detection if flagged. Caching is available in implicit and explicit modes, with a 90% discount on cached input tokens. Users can also try models in a new project-based Bedrock console. The models are available in US East (N. Virginia) for Sol, and also in US East (Ohio) and US West (Oregon) for Terra and Luna.