Sakana AISparseLM

SparseLM2B

This is the 2B member of Sakana's SparseLM release for sparse training and inference experiments.

Research release

Sparse activation needs a matching execution path

The configuration uses gated sparse feedforward layers and L1 regularization. Its architecture name describes the implementation; it does not establish that pretrained Meta Llama weights were used.SparseLM2B released configuration

Measure the complete inference path

Practical guidance. Compare the sparse and reference kernels on the same hardware. Record batch size and sequence length; theoretical sparsity alone does not establish a latency reduction.

Specifications & access

SparseLM2B specifications
DetailValue and conditions
StatusResearch release
AccessDownloadable
Model identifiersSakanaAI/SparseLM2B
ArchitectureSparseLlamaForCausalLM; 38 layers and hidden width 2,048.SparseLM2B released configuration
Configured sequence size2,048 positions in the released configuration.SparseLM2B released configuration
LicenseApache 2.0SparseLM2B official model card