Published on June 19, 2026, the project presents an inspectable theoretical reconstruction of hypotheses about recurrent depth, sparse experts, and adaptive per-token halting.
On June 19, 2026, OpenMythos presented an open-source theoretical reconstruction of an architecture attributed to Claude Mythos. According to the project README, it describes a recurrent-depth Transformer with mixture-of-experts (MoE) routing, loop-index positional embeddings, and per-token ACT halting.
The repository offers an inspectable implementation of these hypotheses about recurrent depth, sparse experts, and adaptive halting. The description alone does not demonstrate performance or equivalence to the reconstructed system. To assess the claims, consult the original README and code, check the implementation choices, and distinguish observed results from proposed hypotheses.