Holo4 vs. KAT-Coder-Pro V2 Comparison


Holo4 H Company	KAT-Coder-Pro V2 StreamLake	+	+
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About Holo4 is a family of generalist agentic AI models from H Company designed to operate software across graphical interfaces, code environments, MCP servers, APIs, desktop applications, the web, and mobile devices. The family includes a 27B dense model and a 35B-A3B Mixture-of-Experts model with 3B active parameters, both supporting a 256K context window. Unlike agents optimized around a single interface, Holo4 can click and type on screens, write and execute code, and call MCP or API tools depending on what a task requires. The models were trained with supervised fine-tuning and reinforcement learning on agentic workflows spanning desktop, web, MCP/API, mobile, coding, multimodal reasoning, and GUI grounding. Holo4 27B achieved 85.2% on OSWorld at a reported cost of $0.08 per task, while Holo4 35B-A3B scored 80.8% at $0.05 per task in H Company's evaluation.	About KAT-Coder is an agentic AI coding system designed to go beyond traditional autocomplete tools by enabling end-to-end software development workflows driven by reasoning, planning, and execution. It is positioned as a flagship coding model within the KAT ecosystem, built specifically for “agentic coding,” where the model does not just generate snippets but can diagnose issues, propose fixes, run tests, and iterate across multiple files as part of a continuous development loop. It integrates directly with developer environments through API endpoints and proxy layers compatible with tools like Claude Code, allowing seamless use inside existing IDE workflows without changing the interface developers are already familiar with. KAT-Coder is trained using a multi-stage pipeline that includes supervised fine-tuning and large-scale reinforcement learning, enabling it to understand programming context, and reason over complex tasks.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience AI developers, agent platform builders, automation teams, enterprises, and researchers that need generalist computer-use agents capable of completing multi-step workflows across GUIs, desktop and mobile applications, websites, code environments, MCP servers, and business APIs	Audience Software developers and engineering teams who need an AI agent capable of handling end-to-end coding tasks, from debugging and refactoring to multi-file implementation within real development environments
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $0.40 per 1M tokens (input) Input: $0.40 per 1 million tokens Output: $3 per 1 million tokens Free Version Not Supported Free Trial Not Supported	Pricing $0.30 per month Free Version Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information H Company Founded: 2023 France openai.com	Company Information StreamLake United States www.streamlake.ai/product/kat-coder
Alternatives No Alternatives	Alternatives Qwen3-Coder-Next Alibaba
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Categories AI Models Supported	Categories AI Coding Models Supported AI Models Supported

Integrations OpenAI Supported OpenClaw Supported Agentforce Vibes Supported Anuma Supported Bash Supported Brokk Supported ChatGPT Pro Supported Claw Code Supported Codex Security Supported Doraverse Supported GPT-5.5-Cyber Supported GitHub Copilot Supported Hermes Agent Supported Kotlin Supported Muse Supported PHP Supported SQL Supported SimpleClaw Supported SpawnHQ Supported YAML Supported Show More Integrations View All 129 Integrations	Integrations OpenAI Supported OpenClaw Supported Agentforce Vibes Not Supported Anuma Not Supported Bash Not Supported Brokk Not Supported ChatGPT Pro Not Supported Claw Code Not Supported Codex Security Not Supported Doraverse Not Supported GPT-5.5-Cyber Not Supported GitHub Copilot Not Supported Hermes Agent Not Supported Kotlin Not Supported Muse Not Supported PHP Not Supported SQL Not Supported SimpleClaw Not Supported SpawnHQ Not Supported YAML Not Supported Show More Integrations View All 4 Integrations
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