SPLADE's original author releases new sparse embedding model: 150M params beat models up to 1B

IgorCarron · x · 2026-09-18

The original author of the SPLADE line (widely regarded as the definitive sparse embedding architecture) has released the biggest advancement in sparse embedding models since SPLADE-v3: the new model is only 150M parameters yet beats every sparse model up to 1B at search, and reaches sub-millisecond latency using Seismic indexing.

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