DiffusionGemma has poor variable transparency due to high opaque serial depth, but this can be mitigated by an interpretable token bottleneck, reducing serial depth to 1.1X that of Gemma 4. Algorithmic transparency is more challenging in diffusion models due to dynamic token predictions, with early evidence of non-chronological reasoning, token smearing, and intermediate-context reasoning. DiffusionGemma is found to be similarly monitorable to Gemma 4.