Cerebras vs Plano: Inference & Compute Comparison

Cerebras Systems is a pioneering AI hardware company founded in 2015 by Andrew Feldman, Gary Lauterbach, Michael James, Sean Lie, and Jean-Philippe Fricker, who previously worked together at SeaMicro (sold to AMD for USD 334 million in 2012). The company revolutionized AI computing with its Wafer-Scale Engine (WSE), the world's largest chip that uses an entire wafer instead of cutting it into individual chips. The CS-3 system contains 4 trillion transistors across 900,000 AI cores with 44GB of on-chip SRAM, delivering 21 petabytes per second of memory bandwidth—7,000× more than NVIDIA's H100.

Cerebras offers both hardware systems and cloud inference services. The CS-3 hardware system is priced at approximately USD 2-3 million per unit, targeting large enterprises, research institutions, and well-funded AI labs. For more accessible options, Cerebras provides cloud-based inference with competitive rates: a Developer Tier at USD 0.10-0.60 per million tokens depending on model choice, making cutting-edge AI accessible without massive capital investments. Cloud training on CS-2 systems is available at USD 60,000 per week or USD 1.65 million per year.

Cerebras' wafer-scale architecture delivers 10-70× faster inference speeds than GPU-based solutions and achieved 210× speedup over NVIDIA H100 in carbon capture simulations. The on-wafer interconnect bypasses latency bottlenecks of multi-GPU setups, enabling simpler programming models and handling huge models without typical GPU memory constraints. While manufacturing yields and high costs present challenges, Cerebras' breakthrough technology addresses fundamental bottlenecks in AI computing, positioning it as a serious challenger to NVIDIA's dominance in the AI accelerator market.

Plano by Katanemo is an open-source AI-native proxy and data plane for agentic applications, providing built-in orchestration, safety, observability, and smart LLM routing. Built on Envoy proxy, Plano centralizes agent orchestration, model management, and observability as modular building blocks that fit cleanly into existing architectures. With over 5,800 GitHub stars, Plano addresses the critical gap between agent frameworks and production infrastructure, handling the complex middle layer that teams previously had to build themselves.

Plano is designed to work with any programming language or AI framework, delivering agents faster to production by handling orchestration, guardrail filters for safety and moderation, rich agentic signals and traces for continuous improvement, and smart LLM routing APIs for model agility. The platform offers developers the flexibility to configure only what they need, from basic proxy functionality to full orchestration and observability, while staying focused on their agent's core logic rather than infrastructure concerns.

Developed by Katanemo, a software development company founded in 2022 and headquartered in Bellevue, Washington, Plano represents a new architectural pattern for agentic applications. The project offers free hosting of Plano and the Arch family of LLMs (including Plano-Orchestrator-4B and Arch-Router) in the US-central region for development, with options to run locally or contact the team for production API keys. This approach allows developers to quickly prototype and test before scaling to production deployments.