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kyegomez/OpenMythos

A theoretical reconstruction of the Claude Mythos architecture, built from first principles using the available research literature. observed · 2026-10-20

github.com/kyegomez/OpenMythos · homepage · Python · MIT (permissive) observed · 2026-10-20

Health v2 · maintenance only

49/100

  • Activity 75
  • Release rhythm 35
  • Longevity 13

Flags: no_releases

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 185
  • days_rel: n/a
  • days_push: 150
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

14910 stars · 3277 forks observed · 2026-10-20

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

OpenMythos is an open-source, theoretical PyTorch implementation of a Recurrent-Depth Transformer (RDT) architecture inspired by speculation about Anthropic's Claude models. It features a Prelude/looped Recurrent Block/Coda structure with switchable MLA or GQA attention and sparse MoE feed-forward layers.

Use cases

  • implement a looped recurrent-depth transformer from scratch
  • experiment with compute-adaptive depth-variable reasoning in transformers
  • compare MLA vs GQA attention implementations
  • train a sparse mixture-of-experts transformer with routed and shared experts
  • study theoretical reconstructions of proprietary LLM architectures
  • prototype adaptive inference loops in PyTorch

When to choose

  • you want to experiment with recurrent-depth or looped transformer architectures in PyTorch
  • you need a configurable MoE transformer with switchable attention backends
  • you are researching compute-adaptive reasoning and want a hackable codebase

When to avoid

  • you need a production-ready, officially supported Claude model or API
  • you require guaranteed fidelity to Anthropic's proprietary architecture
  • you need a battle-tested framework for training large models at scale

Facets

library · maturity experimental

machine-learning deep-learning llm-training llm-inference deep-learning large-language-models machine-learning python transformer recurrent-depth mixture-of-experts pytorch jax attention research-implementation looped-transformers gpu

2 sources

Member repositories

RepositoryRoleHealth v2
kyegomez/OpenMythosmain49

For agents

markdown · JSON · MCP: product_card(name="kyegomez/OpenMythos")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem