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NVIDIA AI@NVIDIAAI
Welcome Beam! Congrats to @ReflectionAI on launching their first open-weight model. The 501B MoE model was trained on NVIDIA GB300 NVL72 and delivers over 70K tokens/sec/GPU on Blackwell Ultra out of the box on day 0. 🤗 Beam 1.0 NVFP4 checkpoint on @huggingface : huggingface.co/reflection/Bea… L Reflection @reflection_ai Beam is now available across platforms, with open weights under the Apache 2.0 license - in collaboration with an ecosystem of 40+ partners. We're releasing: - Weights, tokenizer, and reference implementation - BF16, FP8 and NVFP4 weights and a DFlash2 drafter - The open source harness we built and trained Beam on: Mirror CLI Weights and model card on Hugging Face: huggingface.co/reflection 🔗 View Quoted Tweet
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2111089696025858212
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---
tweet_id: "2111089696025858212"
author: "NVIDIAAI"
published_at: "2026-10-16T13:39:40+00:00"
source_url: "https://x.com/NVIDIAAI/status/2111089696025858212"
---

Welcome Beam!   
  
Congrats to [@ReflectionAI](https://x.com/ReflectionAI) on launching their first open-weight model.  
  
The 501B MoE model was trained on NVIDIA GB300 NVL72 and delivers over 70K tokens/sec/GPU on Blackwell Ultra out of the box on day 0.  
  
🤗 Beam 1.0 NVFP4 checkpoint on [@huggingface](https://x.com/huggingface):[huggingface.co/reflection/Bea…](https://huggingface.co/reflection/Beam-1.0-501B-A23B-NVFP4)L

![Reflection](https://pbs.twimg.com/profile_images/2107189477575696385/id98cuOX_normal.jpg)

Reflection@reflection\_ai

Beam is now available across platforms, with open weights under the Apache 2.0 license - in collaboration with an ecosystem of 40+ partners.  
  
We're releasing:  
- Weights, tokenizer, and reference implementation  
- BF16, FP8 and NVFP4 weights and a DFlash2 drafter  
- The open source harness we built and trained Beam on: Mirror CLI  
  
Weights and model card on Hugging Face: [huggingface.co/reflection](https://huggingface.co/reflection)

![Tweet Image](https://pbs.twimg.com/media/HUwPdcpWsAAYt5M.jpg)

[🔗 View Quoted Tweet](https://x.com/reflection_ai/status/2111079965529968798)