Autodesk Assistant AI: what it can and can't do

I was trying to remember where Autodesk hid the "Combine" command in the March 2026 update. It used to be under Modify. Then it moved, or maybe I moved, or maybe I was confusing it with something in the manufacturing workspace. I'd already clicked through three menus and opened a help article that described the Fusion 360 interface from what looked like two releases ago. So I opened Autodesk Assistant, typed "where is Combine," and got a direct answer in about two seconds. Panel on the right, no tab switching, no new browser window. I thought: this is the thing. This is what this tool is good at.

Then, feeling optimistic, I asked it to combine two bodies in my model. It explained how combining works. It did not combine the two bodies. That's Autodesk Assistant in one interaction. A genuinely good search tool that sometimes makes you forget it's not an actual coworker.

What it is#

Autodesk Assistant is the AI-powered chat feature embedded across Autodesk products. In Fusion 360, you access it from a button in the upper-right corner. A docked panel opens on the right side, text input at the bottom, conversation above. It looks clean and stays out of the way. The ViewCube, timeline, and toolbar remain untouched, which sounds like a low bar but some vendors manage to fail it.

The Assistant is available in Fusion 360 as of the March 2026 product update, with some features labeled as Tech Preview. It also appears in AutoCAD and other Autodesk products, though the Fusion implementation is the most developed. The underlying system is context-aware: it adapts depending on whether you're on the Home tab managing projects or in the Design workspace building a part.

It's free to use if you have an Autodesk subscription. Which means it's part of the subscription you're already paying for, depending on how you feel about "free" in that context.

What it actually does well#

Finding commands. This is the killer feature and I don't say that lightly. Fusion 360 has a deep menu structure that changes with each workspace, and the command search bar (the "S" shortcut) only works if you know what the command is called. Autodesk Assistant lets you describe what you want to do in plain language and it tells you where to find it, sometimes with enough context that you learn something new about the workflow. I asked "how do I mirror a body across a plane" and got a clear, step-by-step answer with the correct menu location. I've used the software for years and I still find this useful for features I touch once every few months.

Answering how-to questions. "How do I set up a static stress simulation?" "What's the difference between New Body and Join in an extrude?" "How do I export a 2D drawing as a PDF?" The quality of the answers is consistently decent. Not great, not wrong, but decent. The AI pulls from Autodesk's documentation and training materials, and because Autodesk has an enormous library of help content and tutorials, the source material is usually solid. It beats Googling because it doesn't return six YouTube thumbnails, a forum thread from 2019, and a result from a competitor's documentation.

Project management through chat. This one surprised me. You can ask Autodesk Assistant to create projects, organize folders, invite team members, and manage permissions. It confirms changes before applying them. For teams that do a lot of project setup and file management, talking to the AI is genuinely faster than clicking through Fusion's data management panel, which has always felt like it belongs in a different application from the one you're trying to use.

The text-to-command experiment#

Here's where things get interesting and uncertain in equal measure. As of the March 2026 Tech Preview, Autodesk Assistant can execute Fusion 360 AI features directly from natural language. You can type "extrude this profile 10mm" and it will attempt to run the extrude operation. Supported commands include Extrude, Fillet, Chamfer, Hole, Shell, Split, Revolve, and circular and rectangular patterns.

I tried it on a few simple operations. "Add a 3mm fillet to the selected edges" worked. The fillet appeared in the timeline, parametric history intact. "Extrude the top face 5mm" worked after I selected the face first. "Create a rectangular pattern of this hole, 4 instances, 20mm spacing" took two attempts because my first prompt was ambiguous about which direction.

The operations preserve parametric history, which is the important part. You're not getting dumped geometry. You're getting timeline features you can edit, suppress, roll back, and modify the same way you would if you'd clicked through the menus. That's a meaningful distinction from text-to-CAD tools that generate standalone STEP files.

The catches: it only works for the supported commands. Anything outside that list and the Assistant falls back to explaining how to do it manually. The selection context matters, and sometimes the AI misinterprets which face or edge you mean. And it's a Tech Preview, which means Autodesk is signaling that reliability isn't guaranteed. I wouldn't build a workflow around it for production work, but for learning the tool or prototyping quickly, it shaves real seconds off repetitive operations.

Autodesk has also announced something they're calling "Neural CAD," where the Assistant can generate native, editable 3D geometry from text prompts, things like "create a contemporary air fryer." This is closer to actual text-to-CAD functionality baked into a traditional tool. I haven't tested it extensively enough to judge the output quality, but the ambition is clear: Autodesk wants the Assistant to move beyond answering questions toward actually doing design work.

What it can't do#

It can't diagnose problems with your specific model. Ask "why is this fillet failing?" and you'll get a generic explanation of fillet failure modes. You won't get "face 47 has a tangent discontinuity at the G1 junction near the imported edge." The Assistant doesn't analyze your geometry. It talks about geometry in general.

It can't make design decisions. It won't tell you if your wall is too thin for injection molding, if your draft angle is insufficient, or if the part is going to warp on the printer. Those are judgment calls that require understanding the manufacturing process, and the Assistant doesn't have that kind of reasoning.

It can't maintain deep context. Within a single conversation it does a reasonable job of remembering what you've discussed, but it doesn't accumulate knowledge about your project over time. It doesn't know that you've been working on this housing for three weeks, that the client changed the requirements twice, or that the mounting boss was supposed to align with a mating part in a different file. Every conversation starts approximately fresh.

It can't replace knowing the software. This sounds obvious, but it matters. The Assistant is good at helping you find features and explaining workflows. It's not good at compensating for a lack of understanding. If you don't know what a loft is, the Assistant can explain it. But if you don't understand why your loft is producing a self-intersecting surface, the Assistant will give you a textbook answer that's about as useful as reading the help page you already tried.

How it compares to the others#

Against SolidWorks AURA and LEO, Autodesk Assistant is simpler in scope but further along in direct model interaction. SolidWorks LEO can detect broken references and suggest fixes, which is a form of model awareness Autodesk hasn't shipped yet. But Autodesk's text-to-command execution is ahead of anything SolidWorks is offering in production.

Against Onshape AI Advisor, the comparison is cleaner. Both are good documentation assistants. Onshape's is more focused and stays in its lane. Autodesk's is more ambitious, especially with the Neural CAD and text-to-command features, but ambition and reliability aren't the same thing.

Against Creo AI Assistant, the scope is wildly different. PTC's offering is currently limited to error troubleshooting from the support knowledge base. Autodesk is trying to turn the Assistant into a design collaborator. Whether Autodesk's broader approach delivers more practical value than PTC's narrow focus depends entirely on how well the execution holds up.

For a broader view of how all these AI in CAD software assistants compare, the copilot overview covers the full field.

The honest take#

Autodesk Assistant is the best documentation search tool Fusion 360 has ever had. For finding commands, understanding features, and navigating Autodesk's enormous but inconsistently organized help library, it saves real time. I use it weekly, which is more than I can say for most new features Autodesk ships.

The text-to-command features are promising but early. They work for simple, well-defined operations. They break when the situation gets ambiguous. They preserve parametric history, which is the right architectural choice. And they're clearly the foundation for something bigger, whether that's Neural CAD or a more model-aware assistant in future releases.

But right now, today, Autodesk Assistant is a better way to search the help docs and a sometimes-useful way to avoid clicking through menus. That's it. It's a convenience feature wearing the costume of a revolution. It solves real problems, they're just smaller problems than the demo reel implies. I like it. I use it. I don't confuse what it is with what Autodesk wants it to become.