From Training to Serving: Reflection's Beam on CoreWeave
CoreWeave, Friday, October 16th, 2026
Reflection's first open-weight model, Beam, is available on day zero via Serverless Inference in CoreWeave Forge.
Reflection's first open-weight model, Beam, is available on day zero through Serverless Inference in CoreWeave Forge, callable via an OpenAI-compatible API with pay-per-token pricing.
Beam was trained using Weights & Biases Models within Forge, and CoreWeave validated supervised fine-tuning with Axolotl on its infrastructure.
The Apache 2.0-licensed mixture-of-experts model has 501 billion total and 23 billion active parameters and targets software engineering and long-horizon, tool-driven tasks.