Amazon Bedrock
AWS managed service for foundation models — one API across Claude, Llama, Mistral, Titan, Cohere, Stable Diffusion and more, without running a GPU fleet.
Launched April 2023. Billed per token. Includes Knowledge Bases (managed RAG), Agents (tool use), Guardrails (content filtering), Model Customization (fine-tuning). Data doesn't leave your region/account.
Competitors: Azure OpenAI, Google Vertex AI, Together, Fireworks. Bedrock wins in AWS-heavy enterprises where compliance and VPC integration are hard requirements. Classic choice for enterprises that don't want to call OpenAI directly.