Infrastructure Showdown Cloud, IaaS, or Bare Metal?

25 June 2025

When it comes to AI, the compute layer matters. And it matters a lot.

The difference between a high-performing, cost-effective AI application and a sluggish, budget-burning one often comes down to how well your infrastructure matches your model’s needs.

So, what are your options? Broadly speaking, they fall into three camps: Hyperscale Cloud, IaaS Platforms, and Bare Metal.

1. Hyperscale Cloud (AWS, Azure, GCP)

Pros:

  • Instant access to scalable GPU clusters
  • Integrated ecosystem (storage, orchestration, monitoring)
  • Global presence and compliance frameworks

Cons:

  • Expensive for sustained or bursty training loads
  • Overhead from shared tenancy and noisy neighbours
  • Vendor lock-in through proprietary tools and pricing structures

Use Case: Ideal for experimentation, rapid prototyping, and deployments where agility outweighs cost.

2. AI-Optimised IaaS (e.g. Cudo Compute, Lambda Labs, CoreWeave)

Pros:

  • Competitive pricing on GPU compute (per-hour or reserved)
  • Access to modern hardware (H100s, A100s, RTX 6000s)
  • Often less vendor lock-in

Cons:

  • Less mature ecosystem and fewer managed services
  • Requires more DevOps and MLOps overhead
  • Limited geographic footprint compared to hyperscalers

Use Case: Great for sustained model training, custom workloads, or companies building AI as a core product.

3. Bare Metal / On-Prem Infrastructure

Pros:

  • Full control over cost, security, and data locality
  • No shared tenancy = predictable performance
  • Long-term cost savings at scale

Cons:

  • High upfront CapEx (hardware, datacentre, cooling, staffing)
  • Long lead time to deploy and scale
  • Difficult to adapt quickly as model needs evolve

Use Case: Reserved for large enterprises, research institutions, or AI-native businesses operating at scale.

Key Factors to Consider

1. Workload Type

  • Are you training large models or fine-tuning existing ones?
  • Is inference latency a concern?

2. Scale and Predictability

  • Do you need GPU capacity all the time or in bursts?
  • How predictable is your usage?

3. Data Governance and Compliance

  • Do you have strict data residency or security requirements?

4. Budget and Resource Constraints

  • Can you afford the upfront investment of bare metal?
  • Do you have DevOps/MLOps staff to manage infrastructure?

What This Means for You

Choosing the right infrastructure isn’t just a tech decision, it’s a strategic one. For most, a blend of cloud and AI-optimised IaaS is the best balance of speed, cost, and flexibility.

If you’re running training workloads intermittently or have a lean team, cloud services will help you move fast. But as you scale or aim to bring inference in-house, platforms like Cudo Compute can offer significant performance-per-pound advantages.

In our next post, we’ll dive into the cost realities of DIY AI, because infrastructure is just one part of the bill.

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