Flux, an AI-first hardware design platform rethinking how electronics are built, has raised $37 million in new funding led by 8VC, with participation from Bain Capital Ventures, Liquid 2 Ventures, Outsiders Fund, and prominent operators including Lenny Rachitsky, John Lilly, and Tom Preston-Werner. The capital will accelerate development of AI-native tools aimed at making hardware creation as iterative and accessible as software development.
Building Hardware at Software Speed
Founded on the belief that hardware design should be faster and more collaborative, Flux began investing in AI capabilities as early as 2019. Early experimentation laid the foundation for an AI-first architecture, enabling rapid integration of large language models as the technology matured. Today, more than 1,099,361 builders have created over 6,425,482 projects on the platform, reflecting growing adoption across the hardware community.
Expanding the AI Hardware Engineer
Funding will enhance Flux’s AI agent, improving speed, reliability, and clarity. The system already executes multi-step workflows through natural language prompts. Future updates will focus on predictability and transparency, ensuring users understand when to trust outputs and when to validate results. The model operates directly within the same editor used by engineers, aligning automation with real workflows.
Strengthening the Core eCAD Platform
Investment will also advance the core electronic CAD infrastructure, enabling confident design of increasingly complex boards. Improvements target performance at scale, stability, and production-ready outputs, supporting professional engineering teams.
Deepening Ecosystem Integrations
Flux will expand integrations with distributors, manufacturers, and simulation tools, building a robust parts library grounded in real-world availability. The goal is seamless alignment with existing hardware workflows and supply chains.
The new funding positions Flux to accelerate innovation across AI-driven hardware engineering while maintaining user control and workflow transparency.