Deploy GPT-OSS models with Amazon Bedrock Custom Model Import

This article explains how to deploy OpenAI's GPT-OSS models on Amazon Bedrock using Custom Model Import while maintaining full API compatibility.

• Amazon Bedrock Custom Model Import now supports GPT-OSS models with 20B and 120B parameters
• GPT-OSS models use mixture-of-experts architecture for efficient reasoning and tool use
• Complete step-by-step deployment: download model, upload to S3, import via Bedrock, invoke with OpenAI API
• Full OpenAI Chat Completions API compatibility enables minimal code changes for migration
• Model import typically completes in 10-15 minutes for 20B parameter models
• Requires ~40GB local disk space, AWS CLI, Hugging Face CLI, and US East 1 region access
• Provides enterprise benefits: cost predictability, data privacy, fine-tuning capabilities, and model control

Organizations can now deploy open-weight GPT-OSS models on AWS infrastructure with enterprise-grade security and scaling, requiring only minimal application code modifications.