Reflection publishes weights for Beam
Reflection's benchmark results are its own and have not been independently rerun here. The October 16 date comes from press coverage, not a dated company statement read in this run. The release shows no results from customer deployments.
What was claimed?
Reflection published weights for Beam 1.0, its first open-weight model, on Hugging Face under the Apache 2.0 licence, alongside FP8 and NVFP4 versions. The model is a text-only mixture-of-experts model with 501 billion total and 23 billion active parameters. Reflection first announced Beam on October 5 and said the weights would follow later in the month; Unite.AI reports the weights went up on October 16.
What does the evidence support?
Documented availability, not performance proof
Beam is a large US-built model released under a standard permissive open-source licence, which lets companies download, host and modify it without the revenue conditions attached to some other open-weight licences. Launch partners listed by Reflection include major cloud providers and inference platforms, so it can also be used without self-hosting.
What are the limits?
Reflection's benchmark results are its own and have not been independently rerun here. The October 16 date comes from press coverage, not a dated company statement read in this run. The release shows no results from customer deployments.
Claim or evidence date: 2026-10-16. Last verified: .
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