Text to SAT with AI ACIS files, free

Describe the object and the AI builds it in the browser at real size. Export it as an ACIS SAT file, which AutoCAD, SolidWorks, Revit families and many other ACIS-based programs import as a solid body.

Free. Use your own Anthropic or OpenAI key.

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Watch how it works

How it works

  1. 1. Describe it or add a photoType what you want in plain words, with sizes if you know them, or add a photo as a reference. Describe an object or a person.
  2. 2. The AI builds and checks itThe AI writes an OpenSCAD program for an object, or sets up the character generator for a person. It looks at six rendered views of the result and fixes what is wrong, up to five builds per message.
  3. 3. Refine and exportThe model opens in the viewer at real size. Ask for changes in the chat, move the sliders, then download it or pick a format from the Export menu.

Why make it with AI here

  • SAT is the solid format AutoCAD's ACISIN command and Revit's family editor both read.
  • The model keeps its true dimensions, so it drops into drawings at the right scale.
  • You can also export STEP from the same model for programs without ACIS support.

Prompts to try

Click one to open it in the AI panel, then change the sizes to suit.

Exporting SAT

  1. Open the Export menu and choose SAT (ACIS).
  2. In AutoCAD, run ACISIN or IMPORT and pick the file.
  3. In a Revit family, use Insert > Import CAD and choose the SAT file.

The SAT body is faceted: curved surfaces are made of flat triangles. There is no construction history to edit.

Best export formats: SAT (ACIS), STEP

Open SAT files in the free SAT viewer

Good to know

Faceted bodies can be heavy if curves are very smooth; ask for fewer segments for large layouts. Smooth NURBS editing is not possible.

Cost and privacy

You use your own Anthropic or OpenAI API key. It is stored only in your browser and sent only to that provider, which bills you directly: a model typically costs $0.05 to $0.30 at Standard quality and up to about $1 at Detailed, and Innerscene charges nothing. Your key and prompts are not sent to Innerscene; we record anonymous usage statistics such as the steps used, the model chosen, token counts, a cost estimate and whether a model was made.

How to get an Anthropic or OpenAI API key

Read the full guide: API keys, refining and exporting

Questions

▶What is a SAT file?
SAT is the text form of the ACIS solid modelling format, read by AutoCAD, SolidWorks, Revit, BricsCAD and others.
▶Can I bring the SAT into a Revit family?
Yes. Open or create a family, then use Insert > Import CAD and choose the SAT file.
▶Will AutoCAD see it as a 3D solid?
It imports as an ACIS body built from flat faces. You can move, copy and section it, but curves are faceted.
▶Can I get a lighter file?
Ask the AI to use fewer segments on round parts, for example "use 32 segments for circles", before exporting.

What it can make

Floor plans and layouts

Molecules, proteins and crystals

Make a model for any format

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