Amazon Bedrock adds 18 fully managed open-weight models, the largest expansion of new models to date

This article announces Amazon Bedrock's addition of 18 fully managed open-weight models, marking its largest model expansion to date.

• 18 new open-weight models now available across multiple AI providers
• Google Gemma 3 models (4B, 12B, 27B) added to platform
• Mistral AI models including Mistral Large 3 and Ministral series available
• NVIDIA Nemotron models for general and vision tasks now supported
• Qwen3 models including 80B and 235B variants added
• Models from MiniMax, Moonshot, and OpenAI also included
• Unified API enables easy model evaluation and switching without code changes

Amazon Bedrock continues expanding its model portfolio, allowing developers to access diverse open-weight models through a single managed platform.