Reflection’s Open-Weight Beam Model Available on Amazon SageMaker and AWS Trainium

Beam, an open-weight AI model for reasoning and coding, is integrated into SageMaker AI with Trainium optimization.

By Elena Parker · Editorial pseudonym · 2026-10-21 · 1 min read

AI-ASSISTED REPORTING · RETROSPECTIVE ARCHIVE

Retrospective edition: 2026-10-21. Source published: 2026-10-21. Added to this archive: 2026-11-03. This briefing was prepared later from the linked announcement; it was not published on this website on the historical edition date.

Reflection partnered with AWS to offer Beam, its open-weight AI model, through Amazon SageMaker JumpStart. Beam allows advanced fine-tuning, weight inspection, and embedding into workflows, targeting developers needing control beyond API access. It addresses tasks in reasoning, coding, and agentic workflows.

Beam was ported and optimized for AWS Trainium3 chips, providing a high-performance and cost-efficient environment for production deployment under users' own AWS accounts. Being Apache 2.0 licensed, Beam supports transparency, custom modification, and maintains data privacy on AWS infrastructure.

Source & further reading

Beam model by Reflection is now available on Amazon SageMaker JumpStart and AWS Trainium ↗

Source published 2026-10-21. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.