# H

> H Company is a Paris-based AI research and software company developing computer-use models and agents that navigate screens, write code and call tools. Its Holo models underpin developer APIs, HoloTab and enterprise deployments designed to automate work across existing software, including legacy systems.

- **Founded:** 2023
- **Headquarters:** Paris, France
- **Founders:** Charles Kantor (Co-founder; founding CEO, replaced in June 2025), Laurent Sifre (Co-founder; founding CTO, now Chair of the Scientific Committee), Karl Tuyls (Co-founder; departed August 2024), Daan Wierstra (Co-founder; departed August 2024), Julien Perolat (Co-founder; departed August 2024)
- **Products:** Holo4, H Platform, Agents API, Models API, HoloTab
- **Notable:** Raised $220 million in initial financing announced in May 2024., Released Holo1 open-weight models and WebClick, a dataset of 1,639 interaction scenarios, in June 2025., Released Holo4 in September 2026, reporting 85.2% on OSWorld for its 27B model in H’s own evaluation setup.

## Products & services

- **Holo4** — Computer-use model family released September 28, 2026: 27B dense and 35B-A3B mixture-of-experts models supporting GUI, code, MCP and API interactions. Downloadable weights have different licenses by model.
- **H Platform** — Enterprise deployment and orchestration platform, with engineers working directly on customer workflows and infrastructure.
- **Agents API** — Managed computer-use agents for cloud browsers and desktop environments; free, Builder, Startup and enterprise plans.
- **Models API** — Hosted multimodal model inference sold by token usage.
- **HoloTab** — Free Chrome extension for browser tasks, voice instructions, reusable routines and scheduled automation.
- **HoloDesktop CLI** — Open-source desktop client for computer-use agents, supporting local computer control with hosted inference or self-hosting.
- **Runner H** — Historical June 2025 public-beta agent orchestration product for tasks spanning web applications, documents and integrations.
- **Surfer H** — Web-navigation agent introduced alongside the Holo1 models; part of the June 2025 product suite.
- **Tester H** — Natural-language visual end-to-end software testing product offered in enterprise private beta in June 2025.

## Achievements

- Raised $220 million in initial financing announced in May 2024.
- Released Holo1 open-weight models and WebClick, a dataset of 1,639 interaction scenarios, in June 2025.
- Released Holo4 in September 2026, reporting 85.2% on OSWorld for its 27B model in H’s own evaluation setup.
- Publishes replayable benchmark trajectories.
- Reports banking and energy enterprise deployments, with outcomes presented as company case-study claims.

## Latest updates

- **2026-10** — Published October 15 Lab Notes on post-training NVIDIA Nemotron 3.5 Super VL; introduced Holotron4 Super preview results and described tradeoffs between short- and long-horizon tasks.
- **2026-09** — Released Holo4 on September 28, with 27B and 35B-A3B models, hosted access and downloadable weights.
- **2026-07** — Announced managed Computer-use Agents on July 16.

## Links

- Website: https://hcompany.ai/
- LinkedIn: https://www.linkedin.com/company/h-company-ai/
- Twitter/X: https://x.com/hcompany_ai
- GitHub: https://github.com/hcompai

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Profile page: https://yespress.io/h
Published by YesPress — https://yespress.io
Last updated: 2026-10-24