FAQ
Access
Why am I redirected to Billing after sign-in?
The web workspace only opens when the account has workspace access. Accounts without an active subscription (or an unexpired trial) are sent to Billing.
What if my authenticator code is rejected?
Make sure the time on your device is synchronized. TOTP codes are time-sensitive. If the problem persists, contact support.
Do I need MFA to use dAIve?
MFA is optional. If your account has an enrolled authenticator factor, sign-in includes a TOTP code step. Without an enrolled factor, sign-in completes with email and password.
Can I disable MFA later?
Yes. In Profile, you can disable MFA. This removes enrolled TOTP factors after confirmation.
Can I sign in without an active paid plan?
Yes. You can still authenticate, but users without active access are routed to Billing.
Projects
Why does Export fail on a cloud project?
Some cloud projects have a database record before a real .dvp archive exists. Open the project and save it once, then export again.
Can I overwrite a demo project?
Not as a normal user. Use Save Project As... to keep a personal copy. Admin users can save directly to demo projects.
Why is Save Project As... useful even on normal projects?
It is the safest way to branch an experiment, keep a snapshot before major changes, or preserve an alternative model configuration.
What happens if I leave with unsaved changes?
The app asks whether to save and continue, discard changes, or cancel the navigation. Your work is not lost unless you explicitly discard.
Workflow
Should I use Fast or Robust validation?
- Fast for quick baselines and large datasets
- Robust for more reliable model selection and smaller datasets
When should I use the Optimizer?
Use it after a manual baseline when you want automated hyperparameter search. Start with a preset in basic mode, then switch to advanced mode when you need more control over the search space.
What does the execution preview show?
The execution preview box on the Model Design page summarizes the total training effort: how many runs per trial for tuning, how many additional runs for reporting, and the final model training. It updates live as you change settings.
What is the difference between Basic and Advanced optimizer mode?
Basic mode offers curated presets — select one and start. Advanced mode exposes full control over trials, timeout, sampler, pruner, direction, seed, optimize metric, and per-parameter search ranges.
Prediction
Can I predict without retraining?
Yes. Load a .dvm file and run Step 6 directly.
Can I enter values manually instead of uploading a CSV?
Yes. The prediction table supports manual input rows for quick scenario testing. Numeric columns show a text input and categorical columns show a dropdown with the known class options.
What do the red-highlighted cells in the prediction table mean?
They indicate values outside the range seen during training. These are extrapolation candidates and the prediction may be less reliable.
Billing & Credits
How do I start the trial?
Create an account. The 14-day trial is provisioned automatically.
Do I need a credit card to start the trial?
No. The trial starts without Stripe checkout and without credit card details.
What affects compute credit usage most?
The biggest multipliers are:
- batch runs (each model in the batch counts separately)
- optimizer trials (each trial counts as a run)
- robust validation with folds and repeats (each fold/repeat counts, plus the final model fit)
When do credits reset?
Credits reset monthly. The next reset date is shown on the Profile page.
What is the difference between Basic and Pro plans?
The Basic plan (€9/month) includes single model training and basic model design. The Pro plan (€95/month) adds batch mode, advanced model design, automated hyperparameter optimization, and significantly higher limits for projects, storage, and compute credits.