SYNTH FIELD NODE / 4-LAYER BOARDKiCad 3D render · generated output
USB-C EDGE 4 layers50Ω antenna pair1 secure element
Community + Enterprise Synth · AI-assisted PCB design
From circuit intent to a board you can review.
Turn requirements into schematics, component choices, placement, and routing suggestions—then inspect every decision in the tools engineers already use. Both editions connect to LLMs; Synth EE adds a deeper agent and simulation toolchain.
Constraint-aware Open source Agent-ready
DESIGN INPUTSUSB-C field nodePower budgetApproved partsRF keepout
RP2350MCU3V3POWERBG95MODEMUSB-CEDGE4-LAYER BOARD · 50Ω RF
DESIGN CHECKS 18 nets resolved 4 constraints held KiCad output ready
The missing layer
Models can draw. Synth helps you ship the board.
A screenshot of traces is not a finished design. Real PCB work needs constraints, net integrity, part choices, reviewable files, and a clear path from requirement to manufacturing output.
Built with Synth EE
A board brief that turns into a KiCad board.
This Synth field node combines USB-C power and charging, an RP2350 controller, secure-element storage, cellular connectivity, RF matching, and explicit antenna keepouts.
USB-C EDGE Not a generated picture of a board.
The field node is authored as a readable .synth design,
compiled by Synth EE, and exported as KiCad source. The render is the
last step in a chain that still exposes parts, nets, constraints, keepouts,
and manufacturing intent.
diff_pair u3_main_ant bal1_unbal
{ impedance 50ohm
}RF constraints stay attached to the design. One workspace, fewer dead ends
From circuit intent to a board you can defend.
Synth gives the work a shape—without forcing engineering decisions into a chat transcript.
01
Design from intent
Start with a board brief or an existing KiCad project. Synth keeps requirements, interfaces, constraints, and design decisions connected to the board.
02
Parts with context
Compare component options against availability, electrical requirements, package constraints, and the role each part plays in the circuit.
03
Placement and routing you can review
Generate candidates, inspect the affected nets, and see what changed. The result is a design conversation—not a black-box export.
04
Model-flexible and open
Use the right model for the task. Synth keeps project artifacts inspectable and the workflow portable across providers and deployments.
One product, two editions
Start open. Scale with an agent harness.
Both editions can use LLMs. Synth EE adds the tools and managed infrastructure for deeper, more autonomous design exploration.
SCommunity Edition
Open design intelligence for every engineer.
Explore requirements, schematics, parts, placement, and routing with an open foundation you can extend and run yourself.
- Open-source foundation
- LLM access
- KiCad-friendly project flow
- Model-flexible architecture
SEnterprise Edition
Managed SaaS with a custom agent harness.
Bring repeatable, governed AI-assisted PCB design to your engineering organisation with a deeper toolchain for exploring and validating design choices.
- Everything in Community
- Custom agent harness + MCP tools
- World-model / EBM access
- MCTS-style simulation tools
- Managed SaaS operations and support
A calmer way to work
The board is the interface.
Synth turns the messy middle of PCB design into a visible, reviewable flow.
01Specify
Bring in requirements, interfaces, constraints, and target parts.
02Design
Explore schematic, placement, and routing candidates in context.
03Verify
Review nets, design rules, diffs, and manufacturing readiness.
SBoard candidate18 nets · 6 constraints
RequirementsUSB · power · size
Part decisionsMCU · regulator · passives
Design checksDRC · ERC · review
AI-assisted PCB design
Where Synth fits in the new EDA stack.
Astra proves that an AI agent can operate KiCad. Flux and Quilter automate important parts of the EDA workflow. Synth is built around the engineering loop that connects intent, constraints, design files, and review.
CapabilitySynthGPT-6 AstraFluxQuilter
Primary workflow Requirements → schematic → board Agent operates EDA tools AI schematic + routing workspace Automated placement + routing
KiCad fit Open project artifacts + guided flow Shown operating KiCad KiCad supported in cloud flow KiCad import / export
Routing approach Constraint-aware candidates + review Prompt-led computer use AI auto-layout + DRC Physics-driven optimization
Design traceability Requirements, nets, parts, changes Session and tool trace Workspace history Candidate layouts + checks
Deployment model Open source / private / self-hosted Provider-controlled model Cloud platform Cloud service
Best fit Repeatable, inspectable engineering work Fast visual prototyping Integrated cloud EDA Offloading layout work
The point is not to replace the engineer with a prompt. Synth makes AI-assisted design inspectable enough to earn an engineer’s trust.
Start with the board you already have
Give your engineering team a better copilot.
Build with the open Synth Community Edition and connect it to LLMs—or talk to us about Synth EE’s managed agent, MCP, world-model, EBM, and MCTS toolchain.
Questions
A clear place to start.
What is Synth?
Synth is an open-source AI-assisted PCB design workspace. It helps turn requirements into schematics, component choices, placement, routing suggestions, and reviewable KiCad-ready work—while keeping the engineer in control of the design.
What is the difference between Synth Community and Synth EE?
They are two editions of the same Synth product, and both can connect to LLMs. Community is the open-source starting point for individuals and teams. Synth EE is the managed SaaS edition, adding a custom agent harness, MCP tools, access to world-model and EBM capabilities, MCTS-style simulation tools, organisation-wide governance, and support for teams shipping sensitive hardware.
Can Synth work with existing EDA tools?
Yes. Synth is designed around open, inspectable project artifacts and can fit alongside KiCad and other ECAD tools. The goal is to accelerate design work without hiding the source files engineers need to verify and ship.
What does Synth EE include?
Synth EE is delivered as SaaS. It includes the Synth workflow and LLM access, plus a custom agent harness, MCP tools, world-model and EBM access, and MCTS-style simulation capabilities for more advanced PCB design tasks.