Cerebras Systems vs OpenRouter

Cerebras Systems — Hardware · Public · $44.4B mkt cap · 3 of 3 figures sourced  |  OpenRouter — Infrastructure · Private · $1.3B valuation · 3 of 3 figures sourced

Relationship

OpenRouter and Cerebras Inference both sell hosted model access, and Cerebras is also one of the providers OpenRouter routes requests to — a supplier inside the marketplace it overlaps with.

Customer

Customer — “Browse models provided by Cerebras”

openrouter.ai · checked 2026-09-09

Aligned comparison

FieldCerebras SystemsOpenRouter
Size$44.4B mkt cap$1.3B valuation different basis
Employees708—
Founded20152023 8 yrs later
StatusPublicPrivate
CategoryHardwareInfrastructure
Stack layerHardware, Model API, PlatformDeveloper tool, Model API
HeadquartersSunnyvale, USASan Francisco, USA

Capability overlap

Shared · 1

Model inference

Not verified for OpenRouter · 2

Accelerator siliconModel training

Recorded for Cerebras Systems. OpenRouter’s product records say nothing either way — a missing record is not a missing capability.

Not verified for Cerebras Systems · 3

Agent orchestrationAgentic codingText generation

Recorded for OpenRouter. Cerebras Systems’s product records say nothing either way — a missing record is not a missing capability.

Products, side by side

Hand-checked pairing

Cerebras Systems

Model API

Cerebras InferenceModel API

Hosted inference service that serves open-weight models on Cerebras wafer-scale hardware, billed per token.

OpenRouter

Model API

OpenRouterModel API

Single API that routes requests to models from many providers and bills them through one account.

No counterpart

Cerebras Systems sells these in a stack layer with no product recorded for OpenRouter yet — nothing on the other side to compare them against.

Platform

Cerebras Training CloudPlatform

Managed training/fine-tuning cloud for models from 1B to tens-of-trillions of parameters without manual sharding or model-parallelism configuration, billed pay-per-hour or pay-per-model (Cerebras-run custom training).

Hardware

Cerebras WSE-3 Turbo (WSE-3T)Hardware

Wafer-scale processor — now WSE-3 Turbo (WSE-3T), four trillion transistors and 900,000 AI cores — sold inside Cerebras' rack-scale systems: three WSE-3T processors power the CS-4, the successor to the WSE-3-based CS-3.

OpenRouter sells these in a stack layer with no product recorded for Cerebras Systems yet — nothing on the other side to compare them against.

Developer tool

OriDeveloper tool

OpenRouter's suite of agentic developer tools for using any hosted model "right where you are": Ori Harness (CLI) and Ori Code (terminal coding agent) are GA; Ori Eval finds the best model for a task; Ori Intern (Slack) is in private testing and Ori Desktop (Mac) is waitlisted.

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