diff --git a/jvector-twenty/src/main/java/io/github/jbellis/jvector/vector/PanamaVectorUtilSupport.java b/jvector-twenty/src/main/java/io/github/jbellis/jvector/vector/PanamaVectorUtilSupport.java
index dc18c4bf2..6be9f383c 100644
--- a/jvector-twenty/src/main/java/io/github/jbellis/jvector/vector/PanamaVectorUtilSupport.java
+++ b/jvector-twenty/src/main/java/io/github/jbellis/jvector/vector/PanamaVectorUtilSupport.java
@@ -136,6 +136,12 @@ float dot256(VectorFloat<?> v1, int offset1, VectorFloat<?> v2, int offset2) {
         return a.mul(b).reduceLanes(VectorOperators.ADD);
     }
 
+    float dot512(VectorFloat<?> v1, int offset1, VectorFloat<?> v2, int offset2) {
+        var a = fromVectorFloat(FloatVector.SPECIES_512, v1, offset1);
+        var b = fromVectorFloat(FloatVector.SPECIES_512, v2, offset2);
+        return a.mul(b).reduceLanes(VectorOperators.ADD);
+    }
+
     float dotPreferred(VectorFloat<?> v1, int offset1, VectorFloat<?> v2, int offset2) {
         var a = fromVectorFloat(FloatVector.SPECIES_PREFERRED, v1, offset1);
         var b = fromVectorFloat(FloatVector.SPECIES_PREFERRED, v2, offset2);
@@ -158,9 +164,10 @@ public float dotProduct(VectorFloat<?> v1, int v1offset, VectorFloat<?> v2, int
             return dotProduct64(v1, v1offset, v2, v2offset, length);
         else if (length < FloatVector.SPECIES_256.length())
             return dotProduct128(v1, v1offset, v2, v2offset, length);
-        else
+        else if (length < FloatVector.SPECIES_512.length())
             return dotProduct256(v1, v1offset, v2, v2offset, length);
-
+        else
+            return dotProduct512(v1, v1offset, v2, v2offset, length);
     }
 
     float dotProduct64(VectorFloat<?> v1, int v1offset, VectorFloat<?> v2, int v2offset, int length) {
@@ -238,6 +245,31 @@ float dotProduct256(VectorFloat<?> v1, int v1offset, VectorFloat<?> v2, int v2of
         return res;
     }
 
+    float dotProduct512(VectorFloat<?> v1, int v1offset, VectorFloat<?> v2, int v2offset, int length) {
+
+        if (length == FloatVector.SPECIES_512.length())
+            return dot512(v1, v1offset, v2, v2offset);
+
+        final int vectorizedLength = FloatVector.SPECIES_512.loopBound(length);
+        FloatVector sum = FloatVector.zero(FloatVector.SPECIES_512);
+
+        int i = 0;
+        // Process the vectorized part
+        for (; i < vectorizedLength; i += FloatVector.SPECIES_512.length()) {
+            FloatVector a = fromVectorFloat(FloatVector.SPECIES_512, v1, v1offset + i);
+            FloatVector b = fromVectorFloat(FloatVector.SPECIES_512, v2, v2offset + i);
+            sum = a.fma(b, sum);
+        }
+
+        float res = sum.reduceLanes(VectorOperators.ADD);
+
+        // Process the tail
+        for (; i < length; ++i)
+            res += v1.get(v1offset + i) * v2.get(v2offset + i);
+
+        return res;
+    }
+
     float dotProductPreferred(VectorFloat<?> va, int vaoffset, VectorFloat<?> vb, int vboffset, int length) {
         if (length == FloatVector.SPECIES_PREFERRED.length())
             return dotPreferred(va, vaoffset, vb, vboffset);