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Enterprise AI

Custom silicon

Also known as: custom chips, in-house silicon, ASICs

Custom silicon is computer hardware designed by a company for its own specific workloads rather than bought as a general purpose part. In AI, it usually means accelerator chips built to train or run models efficiently, often as application specific integrated circuits (ASICs). Large cloud and model providers use it to cut cost per unit of compute and reduce dependence on third party suppliers.

What it is

Custom silicon covers chips and supporting hardware that an organisation specifies and commissions instead of using off the shelf processors. In AI it typically refers to accelerators for training and inference, alongside custom CPUs, networking and memory design. Examples include Google's TPUs, AWS Trainium and Inferentia, Microsoft's Maia and Meta's MTIA family.

Why it matters

AI answer engines and assistants run on enormous amounts of inference, so the cost and speed of that compute shape what products get built and how they are priced. Cheaper, faster inference makes richer retrieval, longer context and more frequent crawling economically viable, which in turn affects how much content an assistant can read before answering. For marketers it is background infrastructure, but it helps explain why assistant capabilities and API prices change as quickly as they do.

How it works

Providers profile their dominant workloads, then design chips tuned to those maths operations and memory patterns, usually working with a fabrication partner and a specialist design team. The silicon is paired with a software stack of compilers and runtimes so existing models can be mapped onto it, and it is deployed inside the provider's own data centres rather than sold widely. Buyers encounter it indirectly, through instance types, model endpoints or pricing tiers that run on particular hardware.

When it applies

It applies when you are evaluating AI infrastructure costs, choosing a cloud or inference provider, or trying to explain why model pricing, latency and availability shift over time.

Examples

  • A cloud provider offers a cheaper inference instance type backed by its own accelerator rather than general purpose GPUs.
  • A model developer signs a multi year deal to train on a partner's in-house chips to secure capacity.
  • An enterprise team benchmarks the same open weight model on GPU and custom accelerator endpoints before committing to one.

How it is measured

  • Cost per million tokens or per training hour on each hardware option
  • Throughput and latency at a fixed batch size and context length
  • Performance per watt or per rack for capacity planning
  • Share of workloads successfully migrated to the target hardware without accuracy loss

Related terms in Enterprise AI

Primary research · August 2026

How ChatGPT Shortlists Software Brands

An audit across 10 categories and 60 buying questions. I recorded what ChatGPT reads, throws away and links to when a buyer asks it which software to buy, and what that decides.

60
Questions asked
10
Software markets
2,680
Results read
367
Links shown
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