phospho blog · Jun 2025
Official guide showing how to train and test BB-ACT, reinforcing phospho's robotics product focus and documenting support for low-cost robot arms and the phosphobot workflow.
Company research
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Overview
Phospho is a Paris-based AI robotics company that builds the open-source phosphobot toolkit and related hardware/dev-kit products to give robots a 'brain' for teleoperation, data collection, model training, and real-world deployment. The company previously marketed LLM monitoring/text analytics tools and now positions itself primarily around robotics.
Primary product
phosphobot, an open-source AI robotics toolkit/platform
Founded
2023
Headquarters
Paris, France
Team size
1-10
Industry
Technology, Information and Internet
Sub-industry
AI robotics
Offices
Paris, France
San Francisco, California, United States
Business model
open-source software
SaaS subscription
hardware sales
custom solutions
Funding
People & investors
Work & culture
Engineering-first, action-over-theory, impact-focused, transparent, egoless, and ambitious, with an explicit preference for in-person collaboration.
Product & market
Pricing
Free/open-source tier, €35/month phospho PRO subscription, plus custom/contact-us pricing and hardware sales
Differentiators
- —Open-source robotics toolkit
- —End-to-end workflow from data capture to model training and teleoperation
- —Cross-platform support (macOS, Linux, Windows)
- —Meta Quest and API-based robot control
- —Supports low-cost hardware and extension to custom robots/cameras
- —Combines software, hardware kits, and training/evaluation tooling
Technology
Python
TypeScript
Docker
Hugging Face
LeRobot
Meta Quest
GitHub
Notion
Discord
YouTube
Customers
NVIDIA
Hitachi
rerun.io
comma.ai
Scale & contact
Estimated revenue
≈$1.5M est. ARR (public estimate)
Estimated monthly visits
18.7K
Latest news
LinkedIn · Jun 2025
Founder Pierre-Louis Biojout announced BB-ACT, a 3.1B-parameter robotics action model available via API, describing it as a major product launch for phospho's robotics direction.
phospho blog · May 2025
Official launch-style post introducing phosphobot as an open-source robotics app for control, teleoperation, dataset recording, and training state-of-the-art action models.
French Tech Journal · Mar 2024
Profiled phospho as a GenAI tooling startup and summarized the founders, product, and early traction after the January 2024 raise.
Tech.eu · Jan 2024
Covered phospho's €1.7M pre-seed round led by Elaia and Y Combinator and described the company as an LLM monitoring/product analytics startup at the time.
Jobs and careers at phospho
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