Does Engram Do Memory Retrieval in Autoregressive Image Generation?

In three linesAn Engram module (O(1) hash-keyed associative memory) injected into Transformers for autoregressive image generation on ImageNet 256×256 fails to improve quality (FID) despite FLOP gains. Gate-clamp, donor-probe, and frozen-table experiments show the module acts as a gated architectural side-pathway, not a content-addressed retrieval mechanism.

Summary generated by Claude — human-verified