GLM-5.3

GLM-5.3

Z.ai
+
+

Related Products

  • Gemini Enterprise Agent Platform
    999 Ratings
    Visit Website
  • Google AI Studio
    30 Ratings
    Visit Website
  • Planview AdaptiveWork
    714 Ratings
    Visit Website
  • LTX
    182 Ratings
    Visit Website
  • Creatio
    586 Ratings
    Visit Website
  • LM-Kit.NET
    29 Ratings
    Visit Website
  • JetBrains Junie
    12 Ratings
    Visit Website
  • JAMS
    279 Ratings
    Visit Website
  • Datasite Diligence Virtual Data Room
    692 Ratings
    Visit Website
  • Concord
    237 Ratings
    Visit Website

About

GLM-5.3 is Z.ai’s frontier coding model designed for complex software engineering, long-horizon agent tasks, and advanced post-training research. The model uses the same base model as GLM-5.2, with improvements coming from scaled post-training across more environments, more diverse tasks, and larger compute investment. GLM-5.3 delivers stronger coding performance, better task ownership, improved benchmark results, and greater efficiency across realistic development workflows. It is built to handle complex coding tasks, production-style engineering work, research environments, automation tasks, and agentic workflows that require multi-step execution. The model also shows emergent cyber capabilities in vulnerability discovery and exploitation-chain reasoning, with safety evaluation and hardening planned before open-weight release.

About

Tülu 3 is an advanced instruction-following language model developed by the Allen Institute for AI (Ai2), designed to enhance capabilities in areas such as knowledge, reasoning, mathematics, coding, and safety. Built upon the Llama 3 Base, Tülu 3 employs a comprehensive four-stage post-training process: meticulous prompt curation and synthesis, supervised fine-tuning on a diverse set of prompts and completions, preference tuning using both off- and on-policy data, and a novel reinforcement learning approach to bolster specific skills with verifiable rewards. This open-source model distinguishes itself by providing full transparency, including access to training data, code, and evaluation tools, thereby closing the performance gap between open and proprietary fine-tuning methods. Evaluations indicate that Tülu 3 outperforms other open-weight models of similar size, such as Llama 3.1-Instruct and Qwen2.5-Instruct, across various benchmarks.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Software engineers, coding agent builders, AI researchers, ML infrastructure teams, security researchers, developer tool teams, automation teams, technical leaders, and organizations that need frontier coding models, long-horizon reasoning, production-style software engineering, benchmark-driven model evaluation, reinforcement learning research, coding-agent integrations, reasoning effort controls, ZCode workflows, and advanced technical task automation

Audience

Tülu 3 is designed for AI researchers, developers, and organizations seeking a high-performance, open-source language model for advanced reasoning, coding, and instruction-following tasks

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Open source
Free Version
Free Trial

Pricing

Free
Open source
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • The thing I like most is that GLM-5.3 feels aimed at serious engineering work, not casual prompting. It is built around coding agents, long-running software tasks, debugging, and the kind of multi-step execution that actually matters when you are working inside real repos. The post-training jump is also interesting. Z.ai is not just talking about a bigger model; it is pushing the idea that better training on agentic coding and cyber workflows can make the model more useful in practice.

Cons

  • The cybersecurity angle is impressive, but it is also where I would be most cautious. Strong vulnerability discovery and cyber reasoning can be useful for defense, audits, and secure engineering, but I would want very clear controls around how it is used.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Z.ai
Founded: 2023
China
z.ai/

Company Information

Ai2
Founded: 2014
United States
allenai.org/tulu

Alternatives

Grok 4.6

Grok 4.6

SpaceXAI

Alternatives

Molmo

Molmo

Ai2
Claude Opus 5

Claude Opus 5

Anthropic
Olmo 3

Olmo 3

Ai2
Claude Fable 5

Claude Fable 5

Anthropic
Llama 2

Llama 2

Meta
GLM-5

GLM-5

Z.ai
Mistral 7B

Mistral 7B

Mistral AI
GLM-5.1

GLM-5.1

Z.ai
Qwen2.5-Max

Qwen2.5-Max

Alibaba

Categories

Categories

Integrations

C
C#
C++
CSS
HTML
Java
JavaScript
Kotlin
Python
R
Rust
SQL
TypeScript
F#
Factory Droid
GLM Coding Plan
Ruby
Sup AI
Tabbit Browser
scikit-learn

Integrations

C
C#
C++
CSS
HTML
Java
JavaScript
Kotlin
Python
R
Rust
SQL
TypeScript
F#
Factory Droid
GLM Coding Plan
Ruby
Sup AI
Tabbit Browser
scikit-learn
Claim GLM-5.3 and update features and information
Claim GLM-5.3 and update features and information
Claim Tülu 3 and update features and information
Claim Tülu 3 and update features and information