OpenAI is releasing two lower-cost, open-weight reasoning models in an effort to be more competitive with Meta, Mistral and DeepSeek and they will be the first OpenAI models available from Amazon. The new offerings — gpt-oss-120b and gpt-oss-20b — will be among the model choices on AWS’s Bedrock and SageMaker AI services. Both models are said to be well-suited for agentic use. The gpt-oss-120b model performs comparably to OpenAI o4-mini on core reasoning and can run on a single 80GB GPU. The gpt-oss-20b model is compared to OpenAI o3‑mini and can run on edge devices with just 16GB of memory. Continue reading Open-Weight Models Are a First from OpenAI in AWS Catalog