Lilienthal · The track record for scientific simulation

Know which simulation results to trust.

Lilienthal seals each model’s prediction before the test, scores it against the lab result, and shows where every model holds up. It works above the simulators you already run.

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Lilienthal Workspace, Envelope view. Shown with sample data from a fictional cell program.

Simulator-agnostic

A prediction is a value, an interval and the test conditions, so it can come from any tool, including:

  • PyBaMM
  • COMSOL
  • LAMMPS
  • VASP
  • In-house codes
  • ML surrogates
The problem

Three models. Three validation reports. No common ground.

Most teams run more than one model of the same system, and each arrives with its own validation, usually on cases its authors chose. The models agree where it is easy and drift apart where decisions get made: cold cells, fast charging, new chemistries.

Lilienthal puts every model on one record. Each prediction is sealed with its stated interval before the test, then scored against the lab result on the model’s own terms.

Same test, three models Capacity retention after 200 cycles at 0 °C
Kestrel ECM · insideOpen DFN · insideVendor P2D · outside
Illustration with sample data. Model names stand for the kinds of models a cell team runs.
How it works

One record, from prediction to certificate

Five steps on one chain. Each is written to the ledger, so the evidence behind a certificate can be checked by anyone you invite.

Registering a prediction · Lilienthal Workspace · sample data

Study

The blind test

When modelling teams have had to predict an experiment before seeing it, the answers have often scattered widely. In the first Sandia Fracture Challenge, only one of 13 teams stayed within experimental scatter on every numerical quantity it was asked to predict.

A look at three decades of blind prediction, and what it means for battery and materials models.

Read the study
  1. 1994CASP begins scoring protein structure predictions blind, every two years.
  2. 2001The first AIAA Drag Prediction Workshop records a spread of over 270 drag counts for one flight condition.
  3. 2012Thirteen teams predict the same fracture test before the results are released.
  4. 2013Registered Reports launch: studies are reviewed before their results exist.
  5. 2020AlphaFold2 reaches a median 92.4 GDT in CASP’s blind assessment.
  6. 2023The US FDA finalises guidance on the credibility of computational models in device submissions.
Trust

Built to be believed

A track record is only worth something if nobody can edit it after the fact. That includes us.

Sealed before the test. Every prediction is hashed and timestamped the moment it is recorded, before the lab result exists.

Tamper-evident. Each entry is chained to the one before it, so an edit anywhere breaks the chain and shows.

Private by default. Your models, inputs and results stay in your workspace. Nothing leaves it unless you share it.

Neutral by design. Planeworks doesn’t build or sell simulators, so Lilienthal has no reason to favour one.

Judged on its own terms. Each model is scored against the interval it stated, never against another model’s claims.

Shared by invitation. Customers, partners and insurers can verify the certificates you choose to share.

Early access

Put your models on the record

Lilienthal opens to its first design partners in batteries, materials and chemistry. The waitlist opens here on 1 November 2026, and demos begin on 1 December 2026.

  • Your own models, scored on your own tests
  • Keep the simulators you already run
  • Built with design partners from the first day
Opening schedule

  1. 1 Nov 2026Waitlist

    Waitlist and demo requests open

    Join the waitlist for the private beta or request a demo, right here on this page.

  2. 1 Dec 2026Private beta

    Demos and the private beta begin

    The first design partners start sealing predictions in their own workspace.

Want to be a design partner sooner?Message us on LinkedIn
Early access

The waitlist opens on 1 November

Lilienthal is being built with its first battery and materials teams. From 1 November 2026, this is where you join the waitlist for the private beta. Add a reminder and come back then.

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Demos begin on 1 December 2026. Until then, follow Planeworks on LinkedIn for build updates.