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Description
GLM-5.3-Flash is a multimodal foundation model from Z.ai built for high-efficiency reasoning, coding, agents, and visual understanding. The model contains 320 billion parameters in total but activates only 18 billion parameters during inference, helping reduce compute requirements. Its architecture combines linear attention with sparse attention so it can efficiently handle both local dependencies and relevant information spread across very long contexts. Z.ai also introduced IndexPool to reduce the memory and latency overhead associated with long-context retrieval at context lengths reaching one million tokens. The model was pretrained on a 30-trillion-token multimodal dataset that incorporates both textual and visual information. GLM-5.3-Flash is designed for software engineering tasks, autonomous workflows, frontend development, computer use, document analysis, and other professional workloads that benefit from visual reasoning. Its visual coding capabilities allow it to inspect rendered interfaces, identify layout or interaction problems, and use those observations to revise its work. Benchmark results published by Z.ai show that it improves substantially over GLM-5.2 on multiple coding and agentic tests while remaining competitive with more expensive frontier models. GLM-5.3-Flash can be accessed through Z.ai services and is also available as downloadable model weights for deployment through supported open inference frameworks.
Description
GPT-6.2 Astra is an unannounced AI model reportedly being tested by OpenAI as a potential successor to GPT-6 Astra. References to the model identifier have appeared in Codex usage reports shared by users, although OpenAI has not confirmed the model's development or deployment. The model is expected to build on the Astra family's capabilities in advanced reasoning, autonomous software engineering, and complex task execution. Potential programming capabilities include code generation, debugging, repository analysis, automated testing, and software architecture development. Its anticipated reasoning capabilities may support mathematical problem-solving, scientific analysis, technical research, and extended knowledge work. The model could also support agentic workflows that involve planning, interacting with external tools, executing commands, and evaluating results across multiple steps. Improvements in task persistence, instruction following, and reliable tool use may be important development priorities, although no official evaluations have been published. Reported appearances in Codex usage analytics suggest possible experimental integration with OpenAI's coding environment, but general availability has not been established. OpenAI has not released official details about GPT-6.2 Astra's architecture, context window, API access, pricing, safety evaluations, or release date.
API Access
Has API
Yes
API Access
Has API
Yes
Screenshots View All
No images available
Integrations
Hermes Agent
Yes
OpenClaw
Yes
OpenRouter
Yes
Pi Agent
Yes
.NET
No
Charlie
No
ChatGPT
No
ChatGPT Go
No
Gemini Enterprise Agent Platform
No
Kimi K2 Thinking
No
Integrations
Hermes Agent
Yes
OpenClaw
Yes
OpenRouter
Yes
Pi Agent
Yes
.NET
Yes
Charlie
Yes
ChatGPT
Yes
ChatGPT Go
Yes
Gemini Enterprise Agent Platform
Yes
Kimi K2 Thinking
Yes
Pricing Details
$0.15 per 1M tokens (input)
Input: $0.15 per 1M tokens
Output: $0.50 per 1M tokens
Cached input: $0.03 per 1M tokens
Output: $0.50 per 1M tokens
Cached input: $0.03 per 1M tokens
Free Trial
No
Free Version
No
Pricing Details
No price information available.
Free Trial
No
Free Version
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Z.ai
Founded
2019
Country
China
Website
z.ai
Vendor Details
Company Name
OpenAI
Founded
2015
Country
United States
Website
openai.com