Amazon Nova Premier reaches general availability β 1M context, distillation teacher, SWE-bench 42.4%
AWS announced general availability of Nova Premier on April 30, 2025, positioning it as the highest-capability model in the Nova family at launch. Key operator-relevant hooks: 1M context for large codebase and document ingestion; MMLU 87.4%, SWE-bench 42.4%; and the model distillation role β using Nova Premier as teacher to create custom, cost-optimised variants of Nova Pro, Lite, and Micro. AWS reported that a distilled Nova Pro for API calling delivered 20% higher accuracy at Nova Pro speed and cost. Available via Bedrock cross-region inference in US East and US West at launch.