diff --git a/vector.go b/vector.go
index 1057cf9..90e7d4e 100644
--- a/vector.go
+++ b/vector.go
@@ -52,6 +52,7 @@ const (
 	IndexOptimizedForRecall          = "recall"
 	IndexOptimizedForLatency         = "latency"
 	IndexOptimizedForMemoryEfficient = "memory-efficient"
+	IndexOptimizedForBinary          = "binary"
 )
 
 const DefaultIndexOptimization = IndexOptimizedForRecall
@@ -60,6 +61,7 @@ var SupportedVectorIndexOptimizations = map[string]int{
 	IndexOptimizedForRecall:          0,
 	IndexOptimizedForLatency:         1,
 	IndexOptimizedForMemoryEfficient: 2,
+	IndexOptimizedForBinary:          3,
 }
 
 // Reverse maps vector index optimizations': int -> string
@@ -67,4 +69,5 @@ var VectorIndexOptimizationsReverseLookup = map[int]string{
 	0: IndexOptimizedForRecall,
 	1: IndexOptimizedForLatency,
 	2: IndexOptimizedForMemoryEfficient,
+	3: IndexOptimizedForBinary,
 }