How to evaluate AI PCB software
Fifteen questions that separate a tool you can build with from a demo that looks impressive. Ask them of every vendor — including this one.
Most “AI designs your PCB” claims fall apart on the same few points: the output is not real fabrication data, the result cannot be checked outside the vendor’s own tool, or it changes every time you run it. Each question below says what a good answer looks like first, so the list is useful even if you never try our editor.
1.Does it export standard Gerber files?
A usable AI PCB tool exports Gerber RS-274X, Excellon drill, pick-and-place and a BOM; if it only offers its own project format, a PDF or an image, a fab cannot build it.
A real answer names the formats. Ask for a sample output and open it in a free Gerber viewer before you trust it: every copper layer, the outline and the drill file should be there and line up.
Where we standPCBEditor exports Gerber, Excellon drill, pick-and-place and BOM — the same file set you would send from any desktop EDA, with no export tier or paywall.
2.Can it generate fabrication-ready files, or just a picture of a board?
Only if a fab's upload tool accepts the files as they are; many AI demos produce a convincing rendering with no manufacturable data underneath.
“Fabrication-ready” means correct layer mapping, a drill file that matches the copper, and no approximated geometry. The test is simple — send the output to a fab quote tool and see whether it parses, then check it yourself.
Where we standThe board is built in real units, so what you export is measured geometry rather than an approximation of one.
3.Can I run DRC in my own CAD tool afterwards?
You should be able to: export standard fabrication data or a native CAD file and re-run the design-rule check in KiCad, Altium or your own flow.
This is the question that separates an open tool from a trap. If a vendor's results can only be verified inside the vendor's own software, you have no way to audit them.
Where we standOutput is standard fabrication data plus a native KiCad .kicad_pcb file, so you can re-check it in whatever tool you already trust. An AI result that cannot be independently verified is not a result.
4.Will I get my files back in my own CAD format?
Only if the tool reads and writes your CAD program's native format; most AI PCB tools return fabrication files, which any flow can check but not edit as a project.
Gerbers and drill files are enough to manufacture and inspect a board, but you cannot keep designing from them. If you will finish or maintain the board in your own CAD tool, ask which native project formats the AI tool writes, and open a sample in your tool before committing.
Where we standPCBEditor reads and writes native KiCad .kicad_pcb files, so a board can move between it and KiCad in both directions. It does not read or write Altium, Cadence or OrCAD projects; for those flows you get standard Gerber, drill, pick-and-place and BOM files.
5.Does it explain why it placed a component or picked a part?
Some tools do: when a language model makes the choices it can state its reasoning, and that reasoning is what you review and correct.
Ask for the reasoning, not just the outcome. A tool that can say “this regulator because of the input range and thermal budget, this capacitor here because it is the supply pin” is one you can argue with. A black box that emits a board gives you nothing to review — and reviewing is the whole job.
Where we standPCBEditor states why it chose each part, so you can read the reasoning, disagree with it, and change it before anything becomes copper.
6.Which AI router is best for BGA-heavy boards?
There is no single best one: for BGA-heavy boards choose a router that plans the BGA fan-out before general routing, supports your stackup's via types (dog-bone, via-in-pad, microvias), and names every net it could not finish.
Fine-pitch BGA work is the hardest case in autorouting because the inner balls must escape before anything else can be routed. As a rough guide, each signal layer escapes about two rows of balls with dog-bone fan-out, so a large array needs layers or microvias, not a cleverer algorithm. Ask the vendor for a finished board with your ball pitch, which via types it used, and the list of unrouted nets, then check it in your own CAD tool.
Where we standPCBEditor's own router plans the BGA fan-out before general routing, using the via types your stackup allows. On our synthetic 7 × 7 BGA test boards (260 nets, a microvia on every layer) it finished 260 of 260 nets on 12 layers and 254 to 258 of 260 on 24, 100 and 200 layers, each checked against the design rules. Those boards assume microvias; with through-hole vias only, a dense BGA is much harder for any router, and anything left is listed by net name. In a full prompt-to-board run on 17 October 2026, a 4-layer RP2040 board (a 0.4 mm pitch QFN-56) finished with 9 of its 47 nets unrouted, each named, and the export held back its Gerbers until they are fixed.
7.What is the best AI PCB autorouter?
The best autorouter is the one whose results you can verify: repeatable, checked against your fab's rules, honest about unrouted nets, and exporting files you can re-check in your own CAD tool.
Most “AI autorouters” combine a conventional search-based router with AI for placement or rule setup. Judge them on outcomes you can measure: completion on a board like yours, design-rule violations (should be zero), via count, and whether the same input gives the same result. A completion percentage without a list of the missing nets hides exactly what you need to fix.
Where we standPCBEditor's own router is multi-layer and repeatable: the same design gives the same board, every result is checked against the design rules, and unrouted nets are listed by name. More on the free PCB autorouter page.
8.What about DFM — will it actually manufacture?
An AI autorouter can respect DFM limits only if it routes against your fab's real minimum trace, space, drill and annular ring rather than generic defaults.
Design for manufacturability is separate from design-rule checking. Ask whether the tool enforces your fab's real capabilities, then confirm with your fab before a first run, every time, whoever produced the design.
Where we standRules are enforced during routing rather than flagged afterwards, and the checks run against the constraints for the board you are building — but confirming against your chosen fab's capability sheet is still the right final step.
9.Is the result reproducible?
It should be: the same design and rules should give the same board, and if the layout changes on every run, a language model is drawing it.
Run the same design twice. If you get two different boards, the layout will keep drifting every time the model is updated. For hardware you want the same input to produce the same output, so that a review you did yesterday still describes the board you have today.
Where we standRouting is repeatable: same design in, same board out.
10.Can it route a multi-layer PCB automatically, or just two layers?
Good tools route across an internal stackup with vias and planes; some AI tools only route the top and bottom layers.
A board with real density needs more than two copper layers — internal ground or power planes for noise control, extra signal layers for escape routing on fine-pitch parts. Ask whether layer count is fixed at two, or whether the tool actually places vias and routes across an internal stackup.
Where we standLayer count is something you choose — 2, 4, 6, 8 and up — and the router places vias and routes across the full stackup, including stitching internal ground and power planes.
11.Does it actually reduce board respins?
Only if it checks the electrical design as well as the geometry; a clean design-rule check does not catch the mistakes that cause most respins.
Respins are expensive, so this is the question that matters to a budget. The boards that come back wrong are usually wrong somewhere DRC can't see: a shorted input, an enable pin wired backwards, a USB connector that backfeeds power — logic-level mistakes that pass a clean DRC and still don't work.
Where we standDRC catches geometry. Separately, every generated board runs an electrical-integrity audit on the final netlist, checking for the failure modes that cause real respins — shorted connector contacts, enable pins wired to the wrong polarity, USB backfeed — before you export anything.
12.Can I import an existing design, or only start from scratch?
Ask whether you can bring an existing project in: an export-only AI tool helps with new boards but not with the one you already have half-finished.
A tool that only exports is a one-way street. Check which formats it imports — native projects, Gerber archives, or nothing — before you plan around it.
Where we standPCBEditor opens native KiCad .kicad_pcb files and imports Gerber archives, so an existing KiCad board can be continued here. Altium, Cadence and OrCAD files are not imported.
13.If it gets a part or connection wrong, do I start over or can I fix it?
A good AI PCB tool lets you fix the one part or connection that is wrong without regenerating the whole board.
AI output is a first draft, and first drafts have mistakes. The real question is what fixing one costs you: do you edit the one thing that's wrong, or does any change mean throwing away the board and starting over?
Where we standCorrections happen by chat, targeted at what you ask for — swap a part, fix a connection, reroute one section — without regenerating the whole board. It's still worth checking the change only touched what you asked for, the same discipline as reviewing any edit.
14.Is there a self-hosted AI PCB design tool?
Few hosted AI PCB tools offer a self-hosted version; the self-hosted route today is open-source pieces you run yourself, such as KiCad with an MCP server and a private model, or code-first tools like atopile, tscircuit and SKiDL with the Freerouting autorouter.
If your designs cannot leave your network, ask every vendor where prompts and designs are processed and which model provider sees them. A self-hosted stack gives you that control, at the cost of assembling and maintaining it yourself.
Where we standPCBEditor is hosted only: designs are processed on our servers and prompts go to a hosted model provider, as the privacy policy explains. If that rules it out for your work, the open-source route above is the honest alternative.
15.Quilter vs Flux: what is the difference?
Flux is a browser-based PCB design tool with an AI assistant built in, while Quilter takes the schematic and constraints from your existing CAD project, generates candidate layouts and returns them in that tool's native format.
They answer different needs: Flux is where you do the whole design, with an assistant beside you; Quilter automates layout for a design you already have in another tool. Compare them on the same questions as above: export formats, independent DRC, and what happens to the nets they cannot route.
Where we standPCBEditor goes from a plain-English description to a schematic and a routed board in the browser, with KiCad files out; the comparison pages set it against both tools question by question.
The one thing every answer comes back to
Notice what the questions have in common: they all ask whether the physical part of the design is measured or asserted. A language model is good at judgement — which regulator, which topology, why this capacitor goes here. It has no way to measure whether a trace clears a pad by 0.15 mm, so anything that depends on measurement has to come from an engine that measures instead. Tools that keep those two halves separate can answer these questions. Tools that ask one model to do both cannot.
Why an LLM cannot apply the physics →Run the checklist against us. Describe a board, export the Gerbers, open them in any viewer, and re-run DRC in your own tool — that is the whole point of answering these honestly.
Try PCBEditor free →