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Average Ratings 0 Ratings

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ease
features
design
support

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Description

Holo4 is H Company's series of generalist computer-use and agentic AI models built to perform multi-step work across software interfaces. It is available as Holo4 27B, a dense 27-billion-parameter model, and Holo4 35B-A3B, a Mixture-of-Experts model containing 35 billion total parameters with 3 billion active. Holo4 can interact with applications by clicking and typing through graphical interfaces, writing and executing code, or calling MCP and API tools. The same model can operate across desktops, websites, Android devices, code sandboxes, and business APIs without requiring developers to select a separate specialized model for each environment. H Company trained Holo4 using 127 billion supervised fine-tuning tokens, with approximately three-quarters consisting of successful agentic trajectories spanning desktop, web, MCP/API, and mobile tasks. Reinforcement learning then trained separate experts for desktop and web interaction and for terminal, MCP, and API work before merging them into a single model. Holo4 27B scored 85.2% on OSWorld, 61.7% on OSWorld 2.0, 45.4% on AutomationBench, and 85.1% on AndroidWorld in the evaluations reported by H Company. The models support a 256K context window, with the 27B model positioned for greater accuracy on long multi-step tasks and the 35B-A3B version positioned as a faster and less expensive alternative. Holo4 is available through a hosted API and downloadable model weights, enabling developers and enterprises to build agents that perform workflows spanning multiple applications and interaction methods.

Description

KAT-Coder represents a cutting-edge AI coding solution that transcends standard autocomplete functionalities by facilitating comprehensive software development processes that involve reasoning, planning, and execution. This system stands as the premier coding model within the KAT ecosystem, specifically tailored for "agentic coding," which allows the model to not only generate code snippets but also to identify problems, suggest solutions, conduct tests, and refine multiple files in a continuous development cycle. It seamlessly integrates into developer environments via API endpoints and proxy layers that are compatible with tools like Claude Code, ensuring that developers can maintain their familiar workflows without needing to alter their interfaces. KAT-Coder employs a sophisticated multi-stage training pipeline that combines supervised fine-tuning with extensive reinforcement learning, which equips it with the ability to grasp programming contexts and tackle intricate tasks effectively. In this way, KAT-Coder not only enhances productivity but also empowers developers to focus more on innovative aspects of their projects.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

OpenAI Yes 
OpenClaw Yes 
.NET Yes 
Brokk Yes 
ChatGPT Work Yes 
EaseMate AI Yes 
GPT-5.1-Codex-Max Yes 
Gemini Enterprise Agent Platform Yes 
GitHub Copilot Yes 
Hermes Agent Yes 
MiniMax No 
Oh My OpenAgent Yes 
PowerShell Yes 
R Yes 
Rust Yes 
Swift Yes 
ThreadMaster.ai Yes 
Use AI Yes 
Yonoo Yes 
ZeroHuman Yes 

Integrations

OpenAI Yes 
OpenClaw Yes 
.NET No 
Brokk No 
ChatGPT Work No 
EaseMate AI No 
GPT-5.1-Codex-Max No 
Gemini Enterprise Agent Platform No 
GitHub Copilot No 
Hermes Agent No 
MiniMax Yes 
Oh My OpenAgent No 
PowerShell No 
R No 
Rust No 
Swift No 
ThreadMaster.ai No 
Use AI No 
Yonoo No 
ZeroHuman No 

Pricing Details

$0.40 per 1M tokens (input)
Input: $0.40 per 1 million tokens
Output: $3 per 1 million tokens
Free Trial No 
Free Version No 

Pricing Details

$0.30 per month
Free Trial No 
Free Version Yes 

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

H Company

Founded

2023

Country

France

Website

openai.com

Vendor Details

Company Name

StreamLake

Country

United States

Website

www.streamlake.ai/product/kat-coder

Product Features

Product Features

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