---
title: "Discussion on \"Hydrogen-1.0 MIT Open Weights: Gated BF16, NVFP4 262K Context Cliff, and Vendor FSR vs GPT-6 Astra\" | Hashnode"
description: "Discussion on \"Hydrogen-1.0 MIT Open Weights: Gated BF16, NVFP4 262K Context Cliff, and Vendor FSR vs GPT-6 Astra\". Deep Principle Nov 2: Hydrogen-1.0 — 753B MIT MoE from GLM-5.3; gated BF16 vs ungated NVFP4/MXFP4; SGLang recipes; 1M card vs 262K NVFP4 context cliff; vendor FSR/GPQA vs GPT-6 Astra; verify-before-trust science checklist for builders."
url: "https://hashnode.com/posts/hydrogen-1-0-mit-open-weights-gated-bf16-nvfp4-262k-context-cliff-and-vendor-fsr-vs-gpt-6-astra/6ae9ebe391b28617f39216d5"
---

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# [Hydrogen-1.0 MIT Open Weights: Gated BF16, NVFP4 262K Context Cliff, and Vendor FSR vs GPT-6 Astra](https://yongboyu.hashnode.dev/hydrogen-1-0-mit-open-weights-gated-bf16-nvfp4-262k-context-cliff-and-vendor-fsr-vs-gpt-6-astra?utm_source=hashnode&utm_medium=feed)

Deep Principle Nov 2: Hydrogen-1.0 — 753B MIT MoE from GLM-5.3; gated BF16 vs ungated NVFP4/MXFP4; SGLang recipes; 1M card vs 262K NVFP4 context cliff; vendor FSR/GPQA vs GPT-6 Astra; verify-before-trust science checklist for builders.

Nov 3 · 8 min read · yongboyu.hashnode.dev  
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