Exa Laboratories

Exa Laboratories, which announced a rename to Zettascale, is a San Francisco-based semiconductor company developing AI silicon it calls XPUs. The architecture is premised on the observation that moving data consumes far more energy than computing on it and that datacenters are constrained by available power; the XPU is therefore designed to keep data close to compute, and to combine dense math, sparse models and the numerical precisions such models actually use within a single architecture. The company positions its hardware for workloads it associates with "recursive self-improvement" and superintelligence, in which models improve by acting, being scored and learning from results, with much of the compute devoted to generating experience rather than reading text.

Two products are described. Grasshopper is the company's first XPU, prototyped on an FPGA and listed as coming soon. Monolith is an in-development cluster of XPUs intended to behave as a single chip, targeting agents, experience generation and training on the same silicon. The company also publishes essays and updates on its thesis that language-based scaling is reaching diminishing returns and that the next stage of AI depends on a different class of hardware.

Business model

Hardware company developing proprietary AI accelerator chips and clusters; the site references partnerships, early access and investment inquiries.

Traction

Grasshopper XPU prototyped on an FPGA and listed as coming soon; Monolith cluster in development. Backed by Y Combinator, Soma Capital and Olive Tree Capital.

Latest developments

In September 2025 the company announced a new name, Zettascale, along with a progress update. A subsequent essay, "The Final Frontier of Intelligence," dated June 2026, argues that large language models are plateauing and that the next frontier of AI requires different hardware. Two founding engineer roles (cluster/PCB and FPGA/ASIC) are open in San Francisco at $150K–$300K plus 0.50%–2.00% equity.