Welcome Beam: a 501B open model you can own, customize, and scale
3.24T1.5 sourceHugging Face Blog
Source record
Published by Hugging Face Blog (T1.5 source). The original is at https://huggingface.co/blog/reflection-beam.
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The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.
SummaryHugging Face introduces Beam, a 501-billion-parameter open model targeting coding and agentic tasks, shipped with a dedicated Rust-based harness. It supports transformers, vLLM, and SGLang, and includes inference, SFT, and RL recipes developed with Reflection, plus $10,000 Hub credits for builders.
Why it mattersFirst-party release of a frontier-scale open model aimed at agentic coding, with day-0 post-training recipes and a small credits incentive for hands-on builders.

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