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Description
GLM-5.3 is Z.ai’s advanced coding and agentic reasoning model built through scaled post-training on top of the GLM-5.2 base model. The release focuses on frontier coding, long-horizon software engineering, agent tasks, cyber evaluation, and reinforcement learning at scale. GLM-5.3 improves significantly over GLM-5.2 on complex coding benchmarks, real-world engineering environments, Terminal Bench 3.0, DeepSWE, Agents’ Last Exam, and Z.ai’s internal Code Bench. The model is trained on environments that resemble real professional work, including tasks involving codebases, infrastructure, documentation, compute clusters, experiments, bottleneck diagnosis, implementation, testing, and measurable optimization. Z.ai’s post-training stack includes IndexShare for efficient long-context processing, SAO for reinforcement learning on long-horizon tasks, and slime for large-scale asynchronous training. GLM-5.3 supports three thinking effort levels, including low, high, and max, with max recommended for coding tasks. The model also demonstrates emergent cyber capabilities across vulnerability discovery and exploitation benchmarks, prompting continued safety evaluation and hardening before weights are released. GLM-5.3 can be used through the GLM Coding Plan, ZCode, Claude Code, OpenCode, and other coding agent workflows. By combining stronger coding performance, long-horizon task execution, post-training scale, cyber evaluation, reasoning effort controls, and coding-agent integrations, GLM-5.3 supports advanced developer and research workflows.
Description
OpenAI Astra is an upcoming AI model concept built for users and organizations that need more capable multimodal reasoning, autonomous execution, and end-to-end task completion. The model would be designed to understand complex instructions, process multiple types of input, use tools, and produce polished outputs across professional workflows. Astra would support advanced use cases such as software engineering, research automation, document analysis, data interpretation, creative generation, enterprise search, and AI agent orchestration. Its multimodal capabilities would allow users to work across text, images, files, interfaces, and potentially voice-based interactions in a more natural way. For developers, Astra could provide a foundation for building AI-native applications, copilots, assistants, and agent systems. For businesses, it could help automate multi-step work that normally spans teams, tools, and long review cycles. The model would likely emphasize reliability, safety, context retention, and stronger task follow-through. Astra would be especially valuable for workflows where users need not only answers, but completed work that can be inspected, refined, and deployed. By combining frontier reasoning, multimodal intelligence, tool use, and agentic execution, OpenAI Astra would help push AI from conversation toward practical collaboration.
API Access
Has API
API Access
Has API
Screenshots View All
No images available
Integrations
Amp
Augment Code
C#
C++
Claude Code
Claw Code
Cline
Cursor
Dessix
Factory Droid
Integrations
Amp
Augment Code
C#
C++
Claude Code
Claw Code
Cline
Cursor
Dessix
Factory Droid
Pricing Details
Free
Open source
Free Trial
Free Version
Pricing Details
No price information available.
Free Trial
Free Version
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Vendor Details
Company Name
Z.ai
Founded
2023
Country
China
Website
z.ai/
Vendor Details
Company Name
OpenAI
Founded
2015
Country
United States
Website
openai.com