Compared · November 2026
TwinWorks vs Dirac.
Dirac’s BuildOS sequences an assembly from CAD and turns it into work instructions, a manufacturing BOM and a process plan. TwinWorks drafts instructions and manuals from your documents, with each step shown on the 3D model.
A TwinWorks step: the screws to fit, shown on the model.
Pick by job. Not by score.
- Get the build order worked out from the CADDiracAutomatic sequence, collision flags, a 3D animation per step.
- Plan the line: MBOM, routings, work centresDiracBill of process and line balancing in the same model.
- Work on export-controlled programmesDiracAWS GovCloud for ITAR, by its own statement.
- Draft manuals and instructions from PDF and WordTwinWorksAI drafts, experts review, operators follow.
- Publish in many languagesTwinWorksAI-assisted translation, 41 languages, editable.
Side by side. From Dirac’s own pages.
Checked on 10 November 2026. Features change, so confirm with Dirac.
| Compared | TwinWorks | Dirac |
|---|---|---|
| Makes | Work instructions and manuals: drafted, reviewed, published and followed in one product. | BuildOS: work instructions, a manufacturing BOM and a bill of process from CAD. |
| Steps | Authors set each step on the 3D model, with assistant proposals. Experts approve. | Sequenced automatically from the CAD, with collision flags and a 3D animation per step. The engineer adds shop knowledge. |
| 3D input | GLB, self-contained GLTF, FBX, OBJ, USDZ. STEP and STP in beta. No CAD add-in. | STEP, SolidWorks assemblies (SLDASM) and JT. PLM connection. |
| Existing manuals | Imports PDF and Word manuals as editable drafts. | — |
| AI | Drafts procedure text from reference PDFs. Proposes part moves and views in the editor. | Reads CAD geometry, infers assembly steps and carries engineering changes through the plan. |
| Output | Browser viewer by link or QR code, PDF, video (MP4 or WebM), S1000D data modules. | Web app: operators follow the 3D steps in BuildOS. PDF and Word export in its release notes. |
| Design change | Shows the procedures and manual sections that use a changed part. Experts approve each update. | With a PLM link, a released change is pulled in and earlier process work is reused. |
| Review | Comments, review, approval, revisions and diffs. | Drafts, review requests and sign-offs. |
| Shop floor | Step status, duration, comments, serial and operator fields, optional photos. Reports as PDF, Word or Excel. | Operator+: cycle times, errors, notes, serial and lot fields. A dashboard compares actual with standard times. |
| Languages | AI-assisted translation, 41 languages, editable. | — |
| Security, hosting | — | SOC 2 Type 2 and ISO 27001:2022 stated. US hosting on AWS. GovCloud for ITAR. |
| Price | Free plan | On request. |
— not stated publicly. The Dirac column sums up its own pages; the links are in the last question below.
How to choose. Four questions.
- Is the build order the hard part? BuildOS works it out from the CAD. TwinWorks does not plan an assembly line.
- Where does the text come from? If the steps already sit in PDF manuals, pick the tool that drafts from them.
- Where may the data be hosted? Dirac hosts in the United States, with GovCloud for ITAR. Ask us about hosting before a pilot.
- Do you write manuals too? TwinWorks drafts manuals from PDF and Word, with review, revisions and web or PDF output.
Where TwinWorks fits
Best when the knowledge already lives in documents.
Drafts from your PDF and Word manuals, steps on the 3D model, approvals, execution records. Pick Dirac for automatic sequencing, MBOM and process planning, and GovCloud.
Questions
What is the difference between TwinWorks and Dirac?
Dirac’s BuildOS starts from the CAD: it sequences the assembly automatically, animates every step and builds the manufacturing BOM and bill of process, and the engineer adds shop knowledge such as torque values. TwinWorks is work instruction and manual software: AI drafts the text from your PDF or Word manuals, authors set each step on the 3D model, experts approve it, and operators follow it in a browser and send back what they did.
How much does Dirac cost?
Dirac publishes no prices and has no pricing page. BuildOS is sold through a demo and a contact form.
Which CAD files do they read?
Dirac names STEP, SolidWorks assemblies (SLDASM) and JT, and can connect to a PLM. TwinWorks imports GLB, self-contained GLTF, FBX, OBJ and USDZ, with STEP and STP import in beta.
Does Dirac use AI?
Yes. Dirac describes AI that reads the CAD geometry, infers the assembly steps, detects dependencies and carries engineering changes through the plan. It says about 80% of an instruction is automated and the engineer adds the rest. In TwinWorks, AI drafts procedure text from reference PDFs and an assistant proposes part moves and views that the author reviews.
What happens when the design changes?
With a PLM connection, BuildOS is told when an engineering change is released, pulls it in and reuses the process work already done. TwinWorks shows which procedures and manual sections use the changed part, and your experts review and approve each update.
Where do these facts come from?
From Dirac’s own pages, read on 10 November 2026: the platform, the release notes, Operator+, BuildOS version 1, deployment on AWS and GovCloud and ITAR. We make TwinWorks. Features and prices change, so confirm with Dirac.
Try it on one of your procedures.
Bring a PDF manual and a 3D model, and see the steps set on the part.
The Free plan costs €0, needs no credit card and starts with 500 AI credits.
TwinWorks publishes this page and is not affiliated with Dirac. Their names belong to their owners.
Updated