C4C AI Pods · Tier 2

Fine Tuning Pod

Inference plus periodic fine tuning capacity, for organisations adapting open weight models on their own data. This is the tier you move up to on evidence, when retrieval alone measurably is not enough, and it is explicitly not a training cluster. The distinction is worth several times the price of the pod.

Designed for

Serving every day, adapting on a cadence

Periodic fine tuning of open models

Adapting open weight models on your own data as a planned, recurring workload: domain language, house style, task specialisation.

Everything the Inference Pod serves

The full inference and retrieval estate runs here too. Fine tuning capacity sits alongside serving, not instead of it.

Evaluation and iteration

The testing loop that makes fine tuning worth doing: evaluation runs, comparisons against the base model, and the evidence that the adapted model is actually better.

Scheduled retraining cycles

Refreshing adapted models as your data changes, on a cadence you plan, with capacity sized for the cycle rather than idling for it.

Not designed for

Stated plainly, as every validated design should

Foundation model training. Sustained utilisation, specialist networking and data engineering at a scale this pod deliberately does not carry. If the plan is genuinely to train, that is a different conversation, and we will have it honestly rather than sell you the wrong tier.

Pure inference estates. If you are serving models and running retrieval with no recurring adaptation work, the Inference Pod does the job at meaningfully lower cost. Buying tier 2 for a tier 1 workload is exactly the oversizing this design line exists to prevent.

Regulated sovereign workloads. Where data residency and regulatory control are the design constraint, the Private AI Pod carries the security and residency wrap as part of the architecture.

Logical architecture

Serving first, fine tuning alongside

Fine Tuning Pod logical architectureLayered block diagram. Users and applications connect to a serving and orchestration layer, with a secondary periodic fine tuning path alongside it, both running on an accelerator and compute layer, backed by a flash storage tier for models and vector indexes and a capacity storage tier for the document estate and training data, all connected by an enterprise Ethernet network. The fine tuning path is periodic, not continuous.Users and applicationsServing and orchestrationFine tuning runsperiodic, not continuousAccelerator and compute layerFlash tiermodels and vector indexesCapacity tierdocument estate and training dataEnterprise Ethernet network  connecting layer

What is in the box

Component classes, not SKUs

Compute class

Enterprise rack servers from our Dell and HPE lines, with the memory and I/O headroom that data preparation and training jobs demand alongside serving.

Accelerator class

Training capable GPUs in modest counts, sized for periodic fine tuning runs on open weight models, not for the sustained utilisation economics of a training cluster.

Storage class

Fast flash for datasets, checkpoints and model versions, with capacity tiers for training data. Checkpoint write speed shapes how long every run takes.

Networking and software layer

Higher bandwidth east west networking for multi GPU jobs, plus an orchestration stack covering serving, training runs, experiment tracking and model versioning.

No part numbers and no prices on this page, deliberately. The specifics are produced in the sizing engagement, configured to order through our Dell, HPE and distribution relationships.

Sizing signals

The Fine Tuning Pod fits when the workload sounds like this:

  • You are adapting open models on your own data, and it is planned work, not an experiment.
  • The models you fine tune sit in roughly the 13 to 40 billion parameter range and above, larger than a pure serving estate typically needs.
  • You have the data pipeline and evaluation criteria, or want help building them.
  • Retrieval alone has been tried and genuinely is not enough for the task.
  • You still serve users every day: inference remains the estate, fine tuning is the addition.

Lifecycle

Every pod is wrapped by the IDEAL framework.

Sizing, procurement, deployment, adoption, then refresh and expansion managed proactively. Fine tuning cadence is reviewed as part of the lifecycle, so capacity tracks the work rather than the original guess.

Questions

Frequently asked questions

What hardware do I need to fine tune an LLM?

More accelerator memory and faster storage than inference, but far less than most sizing conversations assume. Parameter efficient methods have made fine tuning open weight models practical on modest GPU counts, and for periodic runs the capacity question is about the cycle, how often and how large, not about sustained cluster utilisation. Model size, method and cadence set the number.

Should we fine tune a model or use retrieval?

Try retrieval first. Most enterprise tasks are answered by serving a strong open model with retrieval over your own data, which is cheaper, faster to change and easier to govern. Fine tuning earns its place when the model must consistently speak your domain, follow your formats or perform a specialised task where retrieval measurably falls short. The honest test is an evaluation, not a preference.

Is the Fine Tuning Pod a training cluster?

Explicitly not. It carries training capable accelerators in modest counts for periodic adaptation of open weight models. Foundation model training is a different discipline with different economics, sustained utilisation, dedicated data engineering and specialist networking at a different scale. If a plan genuinely calls for that, we will say so plainly and help you size that decision on its own numbers.

How often do enterprises actually fine tune?

On a planned cadence, typically driven by how quickly the underlying data or task changes: quarterly and monthly cycles are common, continuous retraining is rare. That cadence is a sizing input, because capacity that fine tunes one week a month should not be bought as if it trains every day. Expansion stays a costed option you exercise when the cadence genuinely rises.

What does the Fine Tuning Pod cost?

No published price, deliberately. The number depends on model size, method, cadence and the serving estate alongside, so a published figure would be padded or wrong. The sizing conversation produces a validated bill of materials configured to order through our Dell, HPE and distribution relationships.

Prove the need, then size it

Bring the task and the evaluation evidence. We will tell you honestly whether fine tuning earns its place, and exactly what capacity the cadence needs.

Book a sizing conversation