June 26, 2025
Smarter Copilot, Cleaner Layouts, Fewer Bugs
A few weeks ago, we launched Copilot Knowledge—a way for you to teach Copilot how you work. As you approve suggestions, they become part of your personal or project memory: vendor preferences, naming conventions, design rules, review checklists, and more.
The result? Faster decisions, fewer mistakes, and better suggestions without repeating yourself.
Now we’re introducing the next layer: System Knowledge. This is a shared, curated knowledge base built by our team of senior engineers—including folks from NASA and other top hardware teams. They’re constantly encoding real-world insights, best practices, and edge cases that help Copilot make smarter choices across the board.
By combining your personal knowledge with system-wide expertise, Copilot becomes more responsive, more accurate, and more relevant to how modern hardware actually gets built. It now blends tribal wisdom with engineering logic to solve problems that used to require manual intervention—or years of experience.
Want to shape what Copilot knows? Hit us up in Slack or Canny with ideas—naming conventions, routing strategies, design rules. The more we share, the better it gets for everyone.
No more black box. Copilot now gives real-time feedback as it processes part selections and schematic requests.
You’ll see a live execution trace—how it searches, filters, ranks, and substitutes. It’s like watching a checklist unfold in real time. Whether you’re validating a part or building a schematic from scratch, Copilot shows exactly what it’s doing, and why.
Alongside transparency, we’ve made core performance improvements to Copilot’s part-selection engine:
These changes reduce wait time, improve reliability, and keep your momentum flowing during schematic design.
Thanks to your feedback, AI Auto-Layout just got a serious upgrade:
These changes make Auto-Layout results cleaner, more production-ready, and easier to tweak.
We’re not done yet. Here’s what’s coming next:
We resolved a core issue where polygons broke inside modules—restoring full support for airwire and copper DRC checks in modular designs. Now your modules behave predictably from design to fab.
All of this is live now—log in to Flux and give the latest updates a spin. As always, keep the feedback coming. We’re building Flux Copilot with you.
Whether you're migrating from popular EDA applications or starting fresh, mastering high speed PCB design has never been more intuitive. Flux enables teams to design, simulate, and route with real-time AI assistance, so you can spin your next high-speed board with total confidence.
This Spring 2026 updates make hardware design faster end-to-end with a more capable, self-correcting AI agent, improved AI auto-layout that needs less cleanup, sourcing-aware design with real-time pricing and availability, and templates to start from.
Today we’re excited to share that Flux has raised $37M in new funding led by 8VC, with participation from Bain Capital Ventures, Liquid 2 Ventures, and Outsiders Fund, alongside Lenny Rachitsky, John Lilly, and Tom Preston-Werner and many other world-class operators.
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