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What is Hydrogen-1.0?

Hydrogen-1.0 is an innovative scientific language model featuring open weights, developed by Deep Principle through the post-training of GLM-5.3, utilizing a wide variety of data sources such as chemistry, materials science, life sciences, laboratory notes, and research methodologies. The primary goal of this model is to aid researchers in addressing scientific questions, clarifying derivations, analyzing reaction pathways, interpreting spectra, designing experiments, and formulating hypotheses regarding materials. Its capabilities encompass scientific computing workflows, exploration of reaction networks, NMR structure analysis, experiment planning, and material discovery. Users can easily obtain the model by downloading its weights from platforms like Hugging Face and ModelScope, accessing it via API through NeuroSpark, or utilizing Deep Principle's Mira AI Scientist. Additionally, Hydrogen-1.0 can be run locally with proper hardware and software setups. It is crucial for researchers to critically evaluate the model's outputs in context with relevant evidence and scientific constraints, promoting responsible usage in their research endeavors. Consequently, Hydrogen-1.0 signifies a major leap forward in enhancing the efficiency and accessibility of scientific research, ultimately fostering innovation and collaboration in various fields. This advancement opens new avenues for interdisciplinary studies, bridging gaps between different scientific domains.

What is GLM-5.3?

GLM-5.3 is Z.ai’s frontier coding model built to improve complex software engineering, long-horizon agent work, and advanced technical reasoning through scaled post-training. The model uses the same base model as GLM-5.2, with performance gains coming from additional post-training environments, more diverse tasks, and expanded compute on the existing training stack. Z.ai’s stack includes IndexShare for efficient long-context processing, SAO for reinforcement learning on long-horizon tasks, and slime for large-scale asynchronous post-training. GLM-5.3 is designed to perform better on work that resembles real engineering tasks rather than short coding exercises. Its training environments include production-style workflows where the model must diagnose bottlenecks, inspect documentation, use codebases, run experiments, implement changes, and produce measurable improvements. The model improves coding performance across public and private benchmarks, including Terminal Bench 3.0, DeepSWE, Agents’ Last Exam, and Z.ai Code Bench. GLM-5.3 also improves token efficiency, producing stronger agentic coding results than GLM-5.2 while using fewer output tokens in Z.ai’s internal evaluations. The model supports three reasoning effort levels, low, high, and max, and no longer supports disabling thinking. Z.ai recommends max reasoning effort for coding tasks, while applications using disabled thinking must migrate to enabled thinking before switching to GLM-5.3. The release also reports emergent cyber capabilities, including stronger vulnerability discovery and exploitation-chain reasoning, with open-weight release planned after safety evaluation and hardening. By combining scaled post-training, long-context infrastructure, long-horizon reinforcement learning, coding-agent workflows, benchmark improvements, reasoning controls, and ZCode integration, GLM-5.3 helps developers and researchers work on demanding coding and agentic tasks.

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Integrations Supported

APIFree
C++
ClinePass
Cosmos
Grok Build
Java
JavaScript
JetBrains Junie
LM Studio
OpenClaw
OpenRouter
Python
Qoder
SQL
Shiori
Swift
Tabbit Browser
Together AI
Vercel AI Gateway
Wafer

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided
Free Version

Pricing Information

Free
Open source
Free Version

Supported Platforms

SaaS
On-Prem

Supported Platforms

SaaS
Windows
Mac
On-Prem
Linux

Customer Service / Support

Not specified

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Deep Principle

Date Founded

2024

Company Location

China

Company Website

blog.deepprinciple.com/introducing-hydrogen-1.0/

Company Facts

Organization Name

Z.ai

Date Founded

2023

Company Location

China

Company Website

z.ai/

Categories and Features

AI Models

Not specified

AI Science

Not specified

Open-Weight AI Models

Not specified

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Open-Weight AI Models

Not specified

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No Alternatives

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