# Sakana AI’s Error Diffusion Trains Dale-Compliant Dual-Stream Networks, Reaching 96.7% MNIST and 61.7% CIFAR-10 Without Backpropagation

> Source: <https://www.marktechpost.com/2026/07/17/sakana-ais-error-diffusion-trains-dale-compliant-dual-stream-networks-reaching-96-7-mnist-and-61-7-cifar-10-without-backpropagation/>
> Published: 2026-07-18 06:32:43+00:00

Backpropagation relies on weight transport, which biological circuits likely cannot implement. Sakana AI's Error Diffusion sidesteps that constraint, training dual-stream excitatory/inhibitory networks that obey Dale's principle. This piece breaks down how modulo error routing scales the rule from MNIST to CIFAR-10 and reinforcement learning, and what its task-dependent ablations reveal.

The post [Sakana AI’s Error Diffusion Trains Dale-Compliant Dual-Stream Networks, Reaching 96.7% MNIST and 61.7% CIFAR-10 Without Backpropagation](https://www.marktechpost.com/2026/07/17/sakana-ais-error-diffusion-trains-dale-compliant-dual-stream-networks-reaching-96-7-mnist-and-61-7-cifar-10-without-backpropagation/) appeared first on [MarkTechPost](https://www.marktechpost.com).