Flexion Robotics :: Building the Autonomy Stack for Humanoid Robot

Flexion Robotics (Flexion Robotics AG) is a Zürich, Switzerland-based startup founded in late 2024 that is building the autonomy stack for humanoid robots. The company develops general-purpose AI software that enables humanoid robots to perform complex, real-world tasks with minimal human supervision. Their focus is on creating scalable intelligence that works across different hardware platforms — from command interpretation to low-level control, manipulation, locomotion, and task execution. Flexion leverages large-scale simulation, reinforcement learning, and generative AI to bridge the sim-to-real gap efficiently.

The company’s core product is an autonomy platform that powers humanoid robots. It includes:

• Flexion Reflect v0: A research release demonstrating progress toward generalizable robot autonomy.
• Advanced simulation environments and reinforcement learning pipelines for training robust policies.
• Hierarchical architectures combining high-level task planning (using Vision-Language Models) with low-level whole-body control.
• Strong emphasis on sim-to-real transfer and real-to-sim feedback loops to improve model performance with real-world data.

Flexion raised $50 million in Series A funding in November 2025 (following a $7.35M seed round), backed by prominent investors including DST Global Partners, NVentures (NVIDIA’s VC arm), Prosus Ventures, redalpine, Moonfire, and Frst. The funding is being used to expand the Zürich R&D team, scale compute resources and robot fleets, establish a U.S. presence, and accelerate commercialization through partnerships with major humanoid robot OEMs.

The company is hiring aggressively across AI Engineering, Robotics Engineering, and related roles in Zürich, reflecting rapid growth. Flexion positions itself as solving one of the hardest problems in robotics: building reliable, generalizable intelligence that can handle the complexity and variability of real-world physical tasks.