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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
Gemini 4 Flash, reportedly known by the codename Hydrogen, is an anticipated multimodal AI model from Google DeepMind that has not yet received an official product announcement. The model is expected to extend Google's Flash family, which focuses on efficient inference, low latency, and practical AI capabilities for developers and businesses. Potential applications include natural language processing, software development, document understanding, image analysis, and conversational AI. Based on previous Gemini Flash releases, Hydrogen may support text, image, audio, and video inputs for multimodal analysis. Its anticipated reasoning capabilities could assist with programming, mathematical problem-solving, information extraction, and multistep business tasks. Integration with external tools and APIs could enable developers to build AI assistants and automated workflows that interact with enterprise systems. The model may also support structured data generation, search grounding, and configurable reasoning settings, although these features remain unconfirmed. Google's existing Flash lineup includes Gemini 3.8 Flash, which supports software engineering, autonomous agents, and enterprise workflows. Google has not officially verified the Hydrogen codename or published technical specifications, benchmark results, API pricing, or availability details for Gemini 4 Flash.
API Access
Has API
Yes
API Access
Has API
Yes
Screenshots View All
No images available
Integrations
Cheaper Inference
Yes
Hermes Agent
Yes
OpenClaw
Yes
.NET
No
CSS
No
Claude Code
Yes
Cursor
No
DeepSeek Harness
Yes
GLM Coding Plan
Yes
Gemini Enterprise Agent Platform Notebooks
No
Integrations
Cheaper Inference
Yes
Hermes Agent
Yes
OpenClaw
Yes
.NET
Yes
CSS
Yes
Claude Code
No
Cursor
Yes
DeepSeek Harness
No
GLM Coding Plan
No
Gemini Enterprise Agent Platform Notebooks
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
Founded
1998
Country
United States
Website
gemini.com