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ARCby FenxLabsCollective Intelligence

Platform

  • How it works
  • Custom routing and governance
  • Use cases
  • Example architectures

Deployment

  • Hosted Platform
  • Managed Service
  • Self-hosted Licence
  • For ISVs
  • Open the portal

Services

  • Assessment and planning
  • Architecture and integration
  • Model Adaptation
  • EU AI Act readiness
  • Managed Service operations

Resources

  • Cost modeller
  • Compare approaches
  • Pricing
  • FAQ
  • Transparency
  • Get started
  • Discord community

Legal

  • Privacy notice
  • Terms and conditions
  • Sub-processors
  • Accessibility

For individuals

  • FenxChat

FenxLabs. KvK 91762782.

Herengracht 320, 1016 CE Amsterdam, Netherlands

+31 85 060 5273contact@fenxlabs.ai

© 2026 FenxLabs. All rights reserved.

Model Adaptation

A model shaped around your own data

General-purpose models are built for broad use. Model Adaptation trains or adapts one around your proprietary data, your workload and the outcome you need, then hands it over for you to run.

Discuss your requirementsPlan the model mix before you commit

Scoped to your requirements and quoted per engagement. Most engagements open with a paid proof of concept, deliberately small.

General models are not shaped around you

A general-purpose model is trained for broad use. It has not seen your proprietary data, your specialist vocabulary or the way your organisation actually works.

  • Your own datasets and the patterns inside them
  • Specialist vocabulary and domain knowledge
  • Internal processes and how your teams actually work
  • The outputs and the risk profile your organisation actually needs

Model Adaptation is how that proprietary value starts contributing to the system you run, instead of sitting in a database a general-purpose model never reads.

Sized to the gap

You bring the data, the target tasks and the outcome you need. FenxLabs decides how large an intervention the gap actually requires.

  • Your proprietary data
  • The target tasks
  • The outcome you need

Targeted fine-tuning, partial adaptation or full retraining of an open-weight model or another machine learning system, depending on the gap. We run the smallest one that closes it, not the largest one we could sell.

Custom or adapted describes where a resource came from. It is recorded beside the role, never instead of it.

Use the smallest intervention that works

FenxLabs compares adaptation with a different existing model, a routing change and an already-specialised resource before recommending training.

  1. 01A different existing modelCandidate models tested against your workload, not a published leaderboard. Quality, cost and deployment fit compared side by side, hosted and open-weight alike.
  2. 02A change to the routeRouting rules that were right in March are not right in November. We re-cut them against what you now run.
  3. 03A specialised resourceBuilt for one kind of work: code, legal reasoning, retrieval or reranking.

When a requirement survives all three, adaptation is the most direct way to put your own data to work in the system you run.

Plan the model mix before you commit

Your own evaluation sets the proof

Your target tasks and your own evaluation set decide the answer. An adapted model has to improve the required result without adding a deployment or operating burden you would not accept.

No improvement figure is published before an evaluation against your own tasks produces one.

See Managed Service operations

You keep the model and choose where it runs

Illustrative scenario

Us

FenxLabs

    You

    • The weights
    • The evaluation set
    • The deployment
    • The weights
    • The evaluation set
    • The deployment
    0Copies of your weights we keep

    You keep the weights, the evaluation set and the deployment. Training runs in your environment or in ours. What you are left with is a model that belongs to you.

    Model Adaptation does not require ARC. You keep the delivered model and choose where it runs.

    Explore the Self-hosted LicenceExplore model governance

    Put your own data to work

    Thirty minutes with an engineer. Your numbers. A straight answer.

    Discuss your requirementsPlan the model mix before you commit