Choose Amazon Bedrock when:
Choose Microsoft Foundry when:
For large regulated enterprises, a controlled multi-platform strategy may also be appropriate. Bedrock can support AWS-native applications and data, while Microsoft Foundry supports Microsoft 365-centric knowledge and employee workflows.
But multi-platform adoption should be deliberate. Without centralized model-risk management, data-classification rules, evaluation standards, and cost controls, flexibility quickly becomes governance fragmentation.
The best platform is therefore not the one with the longest model list. It is the one that fits the organization’s data gravity, identity boundary, compliance model, operational skills, and target business workflows—while preserving enough model portability to avoid an unnecessary long-term lock-in.