Z ZARDA.ai
FOR WINDOWS · VERSION 7.4

The AI assistant built for structural engineers.

ZARDA answers engineering calculations on your own computer, works inside AutoCAD, Tekla Structures, SAP2000 and ETABS, and writes the scripts you keep rewriting. Connect an AI model when you want one. It still works when you don't.

Download for Windows See what it answers
Windows 10 and 11, 64-bit · 54 interface languages
New chat Model: zarda
[YOU]
Required reinforcement area for Md = 90 kNm, 30x50 cm section, C30, B420, d = 46 cm
[ZARDA · zarda/exact] · 0 s
Required tension reinforcement: As = 5.60 cm² (560 mm²)
a = d − √(d² − 2·Md/(0.85·fcd·b)) = 40.11 mm
As = Md / (fyd·(d − a/2)) = 560 mm²
ρmin ≤ ρ = 0.0041 ≤ 0.85·ρb: OK
Bar choice: 2ø20 (6.28 cm²)
Preliminary design value (TS 500, singly reinforced rectangular section). It must be checked by the engineer.
WORKS WITH AutoCAD Tekla Structures SAP2000 ETABS Excel Ollama · Gemini · Claude · ChatGPT

Exact answers, with the formula shown.

Questions that have one right answer are solved by ZARDA itself, instantly, without sending anything to an AI model. Every answer shows the formula, the numbers that went into it and the assumptions it made.

Beams

Maximum moment, shear and support reactions for simply supported, cantilever and fixed-end beams. Elastic deflection from the section and concrete class.

L = 6 m, q = 20 kN/m → M = 90 kNm, V = 60 kN

Reinforced concrete

Required flexural reinforcement with minimum and maximum ratio checks, bar areas, rebar weights and a take-off for columns and beams. Today these follow the Turkish standard TS 500.

ø12/15 → 7.54 cm²/m · 5ø16 → 10.05 cm²

Quantities and units

Concrete volume, formwork area, slab self-weight, pad footing size, section properties, unit conversions and percentages with tax.

30x50 cm beam, 6 m → 0.9 m³ of concrete

It asks instead of guessing.

Ask “How much rebar do I need for a column?” and ZARDA does not invent a number. It asks for the section, the height, the bars and the stirrups, then calculates from your reply.

It reasons through site rules.

“If it rains, the site closes. The site is open today. Did it rain?” The answer is no, with the rule and the reason written out, and “cannot be determined” when the facts do not settle it.

It works in the programs you already have open.

ZARDA connects to the program running on your computer and reads the open drawing or model. Anything that changes your work asks for your confirmation first.

AutoCAD

Drawing summary, take-off by layer, block tables, drawing checks, find and replace in text, layer tools, and loading AutoLISP commands into the open drawing.

Tekla Structures

Model summary, selecting parts by profile, model checks and ready-made macros for part lists and weights.

SAP2000 and ETABS

Model summary, running the analysis, base reactions per load case and saving the model, through the CSI API.

Between programs

Transfer members from one program to another, for example a layer of lines from AutoCAD into Tekla as profiles.

The scripts you keep rewriting, ready.

45 ready-made templates filled in from your sentence: the folder, the layer, the text to replace. ZARDA checks the syntax, explains what the code does and warns about lines that delete or overwrite.

AutoLISPlengths, areas, layer reports, text and coordinate export
Pythonmerge and compare Excel, PDFs, DXF lengths per layer
Excel VBAduplicates, sheets to files or PDF, sheet comparison
Tekla C# · CSI APIpart lists, frames, base reactions, combinations
Excel formulaswritten for English and Turkish Excel

It also recognizes, checks and explains code in SQL, HTML, CSS, TypeScript, Java, C, C++, Go, Rust, PHP, MATLAB and Bash.

“Write a lisp that reports how many objects are on each layer”
(defun c:NXKATRAPOR (/ ss i lay lst) (if (setq ss (ssget "_X")) (progn (setq i 0) (repeat (sslength ss) (setq lay (cdr (assoc 8 (entget (ssname ss i))))) ... (princ (strcat "\nTotal: " (itoa (sslength ss)) " objects on " (itoa (length lst)) " layers.")) ) ) (princ) )
Syntax check: passed · from a ready template, without AI

Your computer first. The cloud only when you choose it.

Works without any AI model

Calculations, commands, code templates and document tools run in ZARDA's own local brain.

Your choice of model

Run a local model with Ollama, or add your own Gemini, Claude or ChatGPT key for harder questions.

It asks before it acts

Running code, changing a drawing, deleting a file or a saved item all wait for your yes.

Current data comes with its source

Prices, rates and news are looked up on the web and shown with the pages they came from, not guessed.

EXPERIMENTAL

Use my computer. With a Claude API key, ZARDA can look at your screen and use the mouse and keyboard to carry out a task you type. It asks before every task and stops the moment you press Stop.

Download ZARDA 7.4

One installer for Windows 10 and 11 (64-bit). Updates install over the previous version and keep your chats and settings.

Free to download.
Windows may show an “unknown publisher” warning, because the installer is not yet signed by a certificate authority. Choose Run to continue.
Download for Windows
ZARDA_Setup_7.4.exe · 21 MB