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OpenMythos Qwen Shell runs transplanted Qwen2.5-1.5B
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REDDIT · REDDIT// 5h agoMODEL RELEASE

OpenMythos Qwen Shell runs transplanted Qwen2.5-1.5B

OpenMythos Qwen Shell is an experimental compatibility checkpoint that loads Qwen2.5-1.5B-Instruct weights into an OpenMythos PyTorch shell. It demonstrates coherent generation through the OpenMythos forward path, but it is not the final compressed recurrent OpenMythos model.

// ANALYSIS

This is a promising architecture proof, not a finished product release.

  • The interesting part is compatibility: Qwen2.5-1.5B-Instruct can generate coherently inside the OpenMythos runtime without collapsing the forward path.
  • The repo is still a shell/transplant checkpoint, not the final compact recurrent OpenMythos model the author says they are distilling toward.
  • Disabling MoE and collapsing the recurrent slot into a normal block makes the current model much closer to a dense Qwen-style checkpoint than to the intended full OpenMythos design.
  • The fp32 RMSNorm note matters: this reads like a fragile but useful engineering bridge, not a clean architecture swap.
  • The claim that random initialization for recurrent parts catches up faster than full-from-scratch pretraining is the most consequential takeaway, but it is still anecdotal here.
// TAGS
openmythosqwen2.5llmtransformerrecurrentmoeopen-weightexperimental

DISCOVERED

5h ago

2026-04-26

PUBLISHED

5h ago

2026-04-25

RELEVANCE

7/ 10

AUTHOR

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