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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

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 
Gemini Managed Agents No 
Google AI Mode No 
Google AI Plus No 
Google AI Ultra No 
Kubernetes No 
Lua No 
Objective-C No 
Offloop No 
OpenCode Zen Yes 
YAML 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 
Gemini Managed Agents Yes 
Google AI Mode Yes 
Google AI Plus Yes 
Google AI Ultra Yes 
Kubernetes Yes 
Lua Yes 
Objective-C Yes 
Offloop Yes 
OpenCode Zen No 
YAML 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
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

Google

Founded

1998

Country

United States

Website

gemini.com

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