Is DATAIAO free?
Yes. The free plan includes 3 questions a day, 3 tool uses a month and one vehicle in your Garage, no card needed. Paid plans raise the limits and add photo analysis and documents.
Your car. Your AI.
Artificial intelligence specialised in cars.
Diagnose, analyse, compare and modify your cars with an AI built exclusively for the automotive world.
One AI. The whole world of cars.
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Diagnose
Find the possible causes of a fault.
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Analyse
Upload a photo and let DATAIAO analyse it.
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Modify
Build your next project.
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Compare
Compare cars the smart way.
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Your Garage
Keep all your cars under control.
12 tools, one for every moment.
Each one sets the AI up for a specific task and returns a structured result, not a loose block of text.
- DiagnosisFind the possible causes of a fault from its symptoms.
- Identify vehicleDescribe a car and find out its version, engine and generation.
- ComparisonCompare two or more cars and understand the differences, not just the numbers.
- Build My CarA modification plan based on your budget, goal and use.
- MaintenanceWhat your car is due for based on mileage and age.
- Repair costA guide range for parts and labour.
- OBD codesWhat a code means and where to start checking.
- Spec sheetSpecifications, known issues and compatibility for a model.
- Analyse imageUpload a photo of a part, an engine or damage and DATAIAO will tell you what it sees.
- Roadworthiness test prepWhat to check before the inspection to pass first time.
- Buying usedThe model's weak points, what to check and what to ask before buying.
- Check a quoteUpload a photo of the garage's quote and check whether the prices are reasonable.
DATAIAO learns your vehicle's context.
Save your car once — engine, year, mileage, history — and every answer starts from there. No repeating the details with each question.
- It asks before diagnosing, as a good mechanic would.
- It separates what it knows from what it estimates.
- It tells you when it's time to go to a workshop.
- It draws on Dataiao Engine: your model's entry, your engine's, and real cases from cars like yours.
Toyota Corolla 1.8
1.8 Petrol · 2017
Automatic · 120,000 km
It shakes at idle and hesitates when accelerating — what should I check?
Let's track down the problem. I already have your Corolla's details; I need to know:
- Does it happen when cold or warm?
- Does it get worse with the air conditioning on or when going uphill?
- Do any warning lights come on?
- Do you have any OBD codes?
With that I'll give you the possible causes, how to check them and their approximate cost.
Diagnosis · Toyota Corolla 1.8Urgency: medium
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Faulty ignition coilHigh A misfire on one cylinder that gets worse when warm. Confirmed by swapping coils between cylinders.
- Difficulty
- Low
- Approximate cost
- 40–120 €
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Worn spark plugsMedium - Difficulty
- Low
- Approximate cost
- 30–90 €
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Vacuum leak in the intakeLow - Difficulty
- Medium
- Approximate cost
- 20–150 €
Link for your garage created
From symptom to workshop, knowing where you stand.
Every tool returns a structured result: what is most likely, how to check it, what it may cost and when to leave it to a professional.
- For faults, maintenance, purchases, the roadworthiness test or the garage's quote.
- Likelihoods and costs always as guidance, never as certainty.
- Share it with your mechanic with a link.
Dataiao Engine: more than a chat.
Behind every answer there is a knowledge base of our own. Before replying, DATAIAO gathers what it knows about your specific car and hands it to the AI.
- Entries by model, by engine and by gearbox, with their known faults.
- Fault codes, explained: what they mean and what to check.
- What faults turned out to be on other cars with your same engine.
- Under every answer you can see which data was used.
Dataiao Engine Example
- Model sheetToyota Corolla 1.8
- Engine2ZR-FE
- Fault codeP0300
- Confirmed cases with this engine14
- Your historyLast oil change: 9,200 km ago
All of this reaches the AI before it answers
Clients Example
- Talleres Pérez4 vehicles
- Marta G.2 vehicles
- Autos Norte11 vehicles
Every car, with its history and its diagnoses
For garages and dealers too.
If you work with many cars, DATAIAO organises them by client and keeps each one's history, documents and every analysis you run.
- Workshop mode: your clients and each one's vehicles.
- Diagnoses you can send to the customer with a link.
- A model's weak points before buying or valuing it.
And without signing up.
Frequently asked questions
Does it replace a mechanic?
No. DATAIAO guides you: it ranks the most likely causes, tells you how to check them and what they may cost, and warns you when something affects safety. The final diagnosis and the repair are a professional's job.
Does it work for any car?
Yes, any make, model and year. The more details you save about your car — version, mileage, engine code — the more precise the answers.
What is Dataiao Engine?
It is our own knowledge base: entries for models, engines and gearboxes, fault codes, and what faults turned out to be on other cars like yours. The AI consults it before answering you and tells you when it has relied on it.
Can I use it on my phone?
Yes. The site is built for mobile and you can install it on your home screen as an app, without going through any store.
What happens to my data?
Your messages are sent to the AI provider only to generate the answer. You can download your data or delete your account at any time from Settings; the details are in the privacy policy.
Built for people who live and breathe cars.
Start free, no card needed: 3 questions a day and 3 tool uses a month. Add your car and ask your first question in a minute.
Try DATAIAO