AI model architecture / transformer reconstruction
OpenMythos is a theoretical, open-source reconstruction of the Claude Mythos model architecture, implementing a Recurrent-Depth Transformer with switchable attention and sparse MoE.
Solves the same problem with a different architecture or at a different layer. Expect to rewrite the integration.
choose when you want a full Mythos reconstruction with datasets and trace infrastructure rather than just the model architecture
Public reconstruction of Claude Mythos as an open cybersecurity reasoning stack: datasets, models, reproducible environments, and trace infrastructure.
These projects were analysed and named OpenMythos among their alternatives. The relationship is not symmetric — how OpenMythos rates them is a separate judgement, made when OpenMythos is analysed in its own right.
calls OpenMythos “Choose for a MIT-licensed first-principles reconstruction of Claude's architecture if you want a full reference implementation to study.”
Bash is all you need - A nano claude code–like 「agent harness」, built from 0 to 1